VRNM Nickel-cadmium battery
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Transcript of VRNM Nickel-cadmium battery
VRNM Nickel-cadmium batteryUltimate ultra-low maintenance solution
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AMCO Saft Ni-Cd batteries are one of the world’s most reliable power back-up systems. For improving quality and safety, safeguarding the environment and reducing Total Cost of Ownership (TCO), only AMCO Saft Ni-Cd batteries provide a truly reliable solution.
For installations requiring totally reliable power back-up, failsafe engine starting or bulk energy storage, the uniquely long life and low maintenance characteristics of AMCO Saft Ni-Cd batteries cannot be surpassed.
More than 100 years’ experience in developing pocket plate technology is built into every AMCO Saft Ni-Cd battery.
VRNM Ni-Cd battery Performance with ultra-low maintenanceDeveloped in line with long proven Ni-Cd technology, VRNM is an exceptionally reliable ultra-low maintenance pocket plate battery incorporating special technical features.
Delivering long life and requiring no or minimal maintenance, there is no better solution for installations where the risk of failure is unacceptable, as in:
The VRNM Ni-Cd battery is eminently suitable for “remote” applications such as offshore and switching substation operations, where the system must be totally reliable and require minimum number of maintenance visits.
VRNM batteries are supplied as single cells of 1.2 V in a capacity range from 9 Ah up to 750 Ah.
l UPS systems
l emergency lighting
l process control
l telecommunications
l offshore oil and gas
l gas pipelines
l railway signalling
l emergency lighting
l security systems
AMCO Saft Ni-Cd batteriesThe broadest capability in the world
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Nickel-cadmium
lead-acid
VRNM Ni-Cd battery Main benefitsPerformance in temperature extremes
VRNM operates with total reliability over a wide temperature range: – 20°C to + 40°C and exceptionally from – 50°C to + 70°C.
Safety without compromise
Ni-Cd pocket plate technology eliminates all risk of sudden death during the battery’s exceptionally long service life. VRNM is resistant to electrical and physical abuses. With fast recharging and extended storage, the unit is not only simple to install but is also environmentally safe.
Reliable by design
The pocket plate construction of electrodes ensures well proven advantages, reliability and long life.
Apart from special fibrous separator and pressure vent many constructional features are incorporated in VRNM that makes it the ultimate maintenance-free battery:
l iron-free negative electrodes for long life in tropical conditions and excellent charge acceptance even at low charging voltage
l excess negative capacity with large negative electrode surface for effective recombination
l additives in negative plates for effective recombination at low pressure
The inherent characteristics of VRNM batteries provide specific operating advantages:
l absolute reliability l very long lifel freedom from topping up l excellent discharge performancel pre-charged, ready for use l enhanced charge acceptancel tolerance to extremes of l operation in narrow voltage
temperatures window
Effect of temperature on lifetime
100
90
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0 25 ºC 30 35 40 45 50 55 77 ºF 86 95 104 113 122 131
Temperature
Perc
enta
ge o
f +2
5ºC
(47
ºF)
Life
tim
e
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Calculating your battery size
It is important to specify the optimum battery size for your particular installation. Nickel-cadmium ranges offer many capacity steps to create the optimum battery for your application. AMCO Saft’s battery sizing software has been developed to make your battery selection easy. Our sales engineers have been specifically trained to fine-tune sizing of the batteries according to your specific conditions.
AMCO Saft VRNM Ni-Cd battery
No water filling
No water filling is necessary during the VRNM service life under recommended conditions of use because of the large electrolyte reserve, the controlled recombination and the valve regulated venting system (topping up is possible if required).
Valve regulated system
Controlled recombination is made possible through a specific cell design and low pressure flame arresting vent. The risk of thermal runaway is eliminated by the use of free electrolyte – a major advantage over VRLA batteries where starved electrolyte is often the cause of failure.
Designed to be durable
VRNM’s tough cell containers, battery’s positive nickel hydroxide and negative cadmium hydroxide plates, and alkaline electrolyte deliver optimum performance without compromising structural integrity.
Quality built, quality tested
VRNM is manufactured in India; one of Saft’s many internationally accredited ISO 9001 sites.
Stationary Ni-Cd battery sizing
Load profile
Battery layoutConnector between blocks
End lug
Cable between steps/rows, inside-inside
Cable between steps/rows, outside-outside
200
150
100
50
0 0 27 54 81 108 135
Minutes
Am
per
es
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Recombination Cycle:
In a flooded Ni-Cd battery following reaction occurs on over charge.
At the positive plate
40H- ➞ 2H20 + 02 + 4e–
(Oxygen evolution)
At the negative plate
4H20 + 4e- ➞ 2H2 + 40H–
(Hydrogen evolution)
During charging phase, oxygen evolution starts a little before the positive plate is fully charged. Excess negative capacity of VRNM ensures that oxygen evolution commences prior to hydrogen evolution.
Porous separators facilitate diffusion of oxygen that reacts with cadmium at negative plate and chemically discharge cadmium into cadmium hydroxide.
2Cd + 2H2O ➞ 2Cd (OH)2
The current passing through the cell keeps recharging the negative electrode. The process of oxygen generation at positive plate and its getting consumed at negative plate is known as oxygen recombination cycle.
1. Electrode assembly
The active material is retained in pockets formed from perforated nickel-plated steel strips. This mechanically robust pocket plate construction ensures conductivity and robustness. Large surface area of negative electrode and special additives in negative active material enhance faster oxygen recombination hence high rate of overcharge is possible. The supporting structure of electrodes is made of nickel-plated steel and is inert to alkaline electrolyte. There is no corrosion and no risk of “sudden death”.
2. Separator
A thick fibrous material ensures separation between electrodes of opposite polarity. Separator also retains the oxygen gas till it gets recombined at negative electrodes. The separator holds generous quantity of electrolyte between plates, eliminating the risk of thermal runaway.
3. Electrolyte
The electrolyte used in VRNM cells is aqueous solution of potassium hydroxide and Lithium hydroxide. It is not necessary to change the electrolyte during the life of the cell.
4. Terminals
Easy to bolt nickel plated terminals made of steel are provided for both polarities.
5. Cell containers
VRNM cell containers and lids are moulded from translucent polypropylene. Containers and lids are thermo-welded to ensure airtightness.
6. Venting system
VRNM cells are fitted with low-pressure vents. This vent acts as one-way self-resealing valve to prevent air from entering cell, at the same time vents out gases generated during over charge.
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AMCO Saft VRNM Ni-Cd battery
Construction features
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Nominal voltage: 1.2 V/cell rated (nominal) capacity Rated Capacity C5 is defined as available ampere-hours (Ah) at 5 hours discharge rate to an end cell voltage 1.0 V/cell at ambient temperature + 20°C.
Internal resistance Internal resistance of VRNM at room Temperature when measured after float charging is: 100 x 1/C5 milliohms.
Short circuit current Maximum short circuit current in amperes is: 15 x C5 Amps. VRNM batteries can withstand its short circuit current without damage.
Charging characteristicsVRNM batteries can be charged by the following methods:
l Single level float charging:
VRNM batteries can be charged using constant potential charger at 1.40 to 1.43 V/cell.
80% capacity is recharged in 8 hours and 16 hours respectively at 0.2C5 and 0.1 C5 charging rates.
Full capacity is achieved in 30 hours of recharge.
l Dual level constant potential charging:
l First charge with a current limit of 0.1C5 to an average maximum voltage of 1.45 V/cell
l Alternatively, if faster rate of charging is required, a voltage limit of 1.55 V/cell can be used
l After the first stage, switch to float voltage in the range 1.40 to 1.43 V/cell
l After every deep discharge, the first stage should be reapplied manually or automatically
AMCO Saft VRNM Ni-Cd battery
Technical Characteristics
Special operating factors
Ripple effectLike other Ni-Cd batteries VRNM can tolerate high ripple from charging system. Ripple up to 15% has no effect on water loss or life of battery.
Over-dischargeUnlike lead-acid battery VRNM does not fail when cells are discharged more than their rated capacity. VRNM is designed to make recovery from this situation.
Over chargeVRNM with its generous electrolyte reserve is unaffected by small degree of overcharge. In case of excessive overcharge, a situation that will destroy a VRLA battery, VRNM can be refurbished by topping up.
CyclingCycling capability of VRNM is excellent as other pocket plate Ni-Cd batteries. Since VRNM operates at low charging voltage, charging time between deep cycles should be sufficient to recharge battery.
Mechanical abuseLike other pocket plate type Ni-Cd batteries, VRNM is resistant to high degree of shock and vibration. VRNM cells are assembled in polypropylene, all external metal components are nickel-plated and are protected by neutral grease and plastic cover. The battery can withstand corrosive environment.
Installation and maintenanceVRNM batteries are normally supplied filled with electrolyte and charged, ready for immediate use. These can be stored in this condition for up to two years. No commissioning charge required if commissioned within six months from dispatch. VRNM is a maintenance-free product and requires minimum attention. A visual check once in six months for electrolyte level and cleanliness of external components is adequate.
Discharge performanceDischarge currents available for different time durations and to different end cell voltages are given in tabular discharge data. Data is based upon cell performance, after several months of floating at 1.42 V: this eliminates correction factors such as “floating” which needs to be used when sizing batteries.
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AMCO Saft VRNM Ni-Cd battery
Cell Type C5 Ah Cell Dimension
TerminalsCell Wt
L (mm)
W (mm)
H (mm) (KG)
VRNM 9 946 87 280 M10
1.6
VRNM14 14 1.8
VRNM19 19
86 87 280 M10
2.8
VRNM26 26 3
VRNM32 32 3.1
VRNM37 37 3.2
VRNM41 41
58 139 390 M10F
4.7
VRNM44 44 4.8
VRNM54 54 5
VRNM58 58 5.2
VRNM67 67
75 139 390 M10F
6.1
VRNM73 73 6.3
VRNM81 81 6.5
VRNM90 90
103 165 390 M10F
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VRNM100 100 9.2
VRNM107 107 9.5
VRNM116 116 10
VRNM125 125 10.2
VRNM133 133 10.4
VRNM143 143 10.6
VRNM150 150
128 165 390 2XM10F
12.7
VRNM161 161 13
VRNM166 166 13.3
VRNM183 183 13.6
VRNM200 200
156 165 390 2XM10F
15.5
VRNM215 215 15.8
VRNM233 233 16.2
VRNM250 250 16.5
VRNM280 280176 195 400 2XM10F
20.2
VRNM300 300 20.8
VRNM320 320
261 195 400 3XM10F
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VRNM355 355 28.7
VRNM385 385 29.5
VRNM415 415 30.3
VRNM450 450 31
VRNM475 475
345 195 400 4XM10F
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VRNM512 512 39
VRNM555 555 40
VRNM600 600 41
VRNM640 640
430 195 400 5XM10F
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VRNM695 695 51.2
VRNM750 750 52.5
VRNM
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Cell Type C5 AhHours Minutes Seconds
10 8 5 3 2 90 60 45 30 10 5 60 30 10 1
VRNM 9 9 0.92 1.13 1.80 2.89 4.30 5.29 6.89 7.80 8.98 13.7 16.6 23.2 25.9 32.8 32.7
VRNM14 14 1.43 1.76 2.80 4.50 6.68 8.23 10.7 12.1 14.0 21.4 25.9 36.1 40.3 51.1 50.9
VRNM19 19 1.94 2.39 3.80 6.11 9.07 11.2 14.5 16.5 18.9 29.0 35.1 48.9 54.7 69.3 69.0
VRNM26 26 2.65 3.28 5.20 8.35 12.4 15.3 19.9 22.5 25.9 39.7 48.1 67.0 74.8 94.8 94.5
VRNM32 32 3.26 4.03 6.40 10.3 15.3 18.8 24.5 27.7 31.9 48.8 59.2 82.4 92.1 117 116
VRNM37 37 3.77 4.66 7.40 11.9 17.7 21.8 28.3 32.1 36.9 56.4 68.4 95.3 106 135 134
VRNM41 41 4.18 5.17 8.20 13.2 19.6 24.1 31.4 35.5 40.9 62.5 75.8 106 118 150 149
VRNM44 44 4.49 5.54 8.80 14.1 21.0 25.9 33.7 38.1 43.9 67.1 81.4 113 127 160 160
VRNM54 54 5.51 6.80 10.8 17.4 25.8 31.8 41.3 46.8 53.9 82.4 99.9 139 155 197 196
VRNM58 58 5.92 7.31 11.6 18.6 27.7 34.1 44.4 50.3 57.8 88.5 107 149 167 212 211
VRNM67 67 6.83 8.44 13.4 21.5 32.0 39.4 51.3 58.1 66.8 102 124 173 193 244 243
VRNM73 73 7.45 9.20 14.6 23.5 34.8 42.9 55.9 63.3 72.8 111 135 188 210 266 265
VRNM81 81 8.26 10.2 16.2 26.0 38.7 47.6 62.0 70.2 80.8 124 150 209 233 295 294
VRNM90 90 9.18 11.3 18.0 28.9 43.0 52.9 68.9 78.0 89.8 137 166 232 259 328 327
VRNM100 100 10.2 12.6 20.0 32.1 47.7 58.8 76.5 86.7 99.7 153 185 258 288 365 363
VRNM107 107 10.9 13.5 21.4 34.4 51.1 62.9 81.9 92.7 107 163 198 276 308 390 389
VRNM116 116 11.8 14.6 23.2 37.3 55.4 68.2 88.8 101 116 177 215 299 334 423 421
VRNM125 125 12.8 15.8 25.0 40.2 59.7 73.5 95.7 108 125 191 231 322 360 456 454
VRNM133 133 13.6 16.8 26.6 42.7 63.5 78.2 102 115 133 203 246 343 383 485 483
VRNM143 143 14.6 18.0 28.6 46.0 68.3 84.1 109 124 143 218 264 368 411 521 520
VRNM150 150 15.3 18.9 30.0 48.2 71.6 88.2 115 130 150 229 277 386 432 547 545
VRNM161 161 16.4 20.3 32.2 51.7 76.9 94.7 123 140 161 246 298 415 463 587 585
VRNM166 166 16.9 20.9 33.2 53.3 79.2 97.6 127 144 166 253 307 428 478 605 603
VRNM183 183 18.7 23.1 36.6 58.8 87.4 108 140 159 183 279 338 471 527 667 665
VRNM200 200 20.4 25.2 40.0 64.3 95.5 118 153 173 199 305 370 515 575 729 727
VRNM215 215 21.9 27.1 43.0 69.1 103 126 165 186 214 328 398 554 619 784 781
VRNM233 233 23.8 29.4 46.6 74.9 111 137 178 202 232 355 431 600 670 850 847
VRNM250 250 25.5 31.5 50.0 80.3 119 147 191 217 249 381 462 644 719 912 908
VRNM280 280 28.6 35.3 56.0 90.0 134 165 214 243 279 427 518 721 806 1021 1017
VRNM300 300 30.6 37.8 60.0 96.4 143 176 230 260 299 458 555 773 863 1094 1090
VRNM320 320 32.6 40.3 64.0 103 153 188 245 277 319 488 592 824 921 1167 1163
VRNM355 355 36.2 44.7 71.0 114 169 209 272 308 354 541 657 914 1021 1295 1290
VRNM385 385 39.3 48.5 77.0 124 184 226 295 334 384 587 712 992 1108 1404 1399
VRNM415 415 42.3 52.3 83.0 133 198 244 318 360 414 633 767 1069 1194 1513 1508
VRNM450 450 45.9 56.7 90.0 145 215 265 344 390 449 686 832 1159 1295 1641 1635
VRNM475 475 48.5 59.9 95.0 153 227 279 364 412 474 725 878 1224 1367 1732 1726
VRNM512 512 52.2 64.5 102 165 244 301 392 444 511 781 947 1319 1473 1867 1860
VRNM555 555 56.6 69.9 111 178 265 326 425 481 554 847 1026 1430 1597 2024 2017
VRNM600 600 61.2 75.6 120 193 286 353 459 520 598 915 1110 1546 1726 2188 2180
VRNM640 640 65.3 80.6 128 206 305 376 490 555 638 976 1184 1649 1841 2334 2325
VRNM695 695 70.9 87.6 139 223 332 409 532 602 693 1060 1285 1790 2000 2534 2525
VRNM750 750 76.5 94.5 150 241 358 441 574 650 748 1144 1387 1932 2158 2735 2725
VRNMPerformance after prolonged float charge of fully charged cells
Available Amperes at + 20°C Final voltage: 1.00 V/cell
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VRNMPerformance after prolonged float charge of fully charged cells
Available Amperes at + 20°C Final voltage: 1.05 V/cell
Cell Type C5 AhHours Minutes Seconds
10 8 5 3 2 90 60 45 30 10 5 60 30 10 1
VRNM 9 9 0.91 1.13 1.79 2.87 4.13 4.85 6.11 6.66 7.27 11.5 13.7 18.9 21.3 24.2 27.0
VRNM14 14 1.41 1.75 2.78 4.46 6.42 7.54 9.50 10.4 11.3 17.9 21.2 29.4 33.1 37.6 42.0
VRNM19 19 1.92 2.38 3.77 6.05 8.71 10.2 12.9 14.1 15.4 24.3 28.8 39.9 45.0 51.0 57.0
VRNM26 26 2.63 3.25 5.17 8.29 11.9 14.0 17.6 19.2 21.0 33.3 39.5 54.6 61.5 69.8 78.0
VRNM32 32 3.23 4.00 6.36 10.2 14.7 17.2 21.7 23.7 25.9 41.0 48.6 67.2 75.7 85.9 96.0
VRNM37 37 3.74 4.63 7.35 11.8 17.0 19.9 25.1 27.4 29.9 47.4 56.1 77.7 87.6 99.3 111
VRNM41 41 4.14 5.13 8.15 13.1 18.8 22.1 27.8 30.3 33.1 52.5 62.2 86.2 97.0 110 123
VRNM44 44 4.45 5.50 8.74 14.0 20.2 23.7 29.9 32.6 35.6 56.3 66.8 92.5 104 118 132
VRNM54 54 5.46 6.75 10.7 17.2 24.8 29.1 36.6 40.0 43.6 69.1 81.9 113 128 145 162
VRNM58 58 5.86 7.25 11.5 18.5 26.6 31.2 39.4 42.9 46.9 74.2 88.0 122 137 156 174
VRNM67 67 6.77 8.38 13.3 21.4 30.7 36.1 45.5 49.6 54.1 85.8 102 141 159 180 201
VRNM73 73 7.38 9.13 14.5 23.3 33.5 39.3 49.5 54.0 59.0 93.4 111 153 173 196 219
VRNM81 81 8.19 10.1 16.1 25.8 37.2 43.6 55.0 59.9 65.4 104 123 170 192 217 243
VRNM90 90 9.10 11.3 17.9 28.7 41.3 48.5 61.1 66.6 72.7 115 137 189 213 242 270
VRNM100 100 10.1 12.5 19.9 31.9 45.9 53.9 67.9 74.0 80.8 128 152 210 237 268 300
VRNM107 107 10.8 13.4 21.3 34.1 49.1 57.6 72.6 79.2 86.5 137 162 225 253 287 321
VRNM116 116 11.7 14.5 23.0 37.0 53.2 62.5 78.7 85.8 93.7 148 176 244 275 311 348
VRNM125 125 12.6 15.6 24.8 39.8 57.3 67.3 84.8 92.5 101 160 190 263 296 336 375
VRNM133 133 13.4 16.6 26.4 42.4 61.0 71.6 90.3 98.4 107 170 202 279 315 357 399
VRNM143 143 14.5 17.9 28.4 45.6 65.6 77.0 97.0 106 116 183 217 300 338 384 429
VRNM150 150 15.2 18.8 29.8 47.8 68.8 80.8 101.8 111 121 192 228 315 355 403 450
VRNM161 161 16.3 20.1 32.0 51.3 73.8 86.7 109 119 130 206 244 338 381 432 483
VRNM166 166 16.8 20.8 33.0 52.9 76.1 89.4 113 123 134 212 252 349 393 446 498
VRNM183 183 18.5 22.9 36.4 58.3 83.9 98.6 124 135 148 234 278 385 433 491 549
VRNM200 200 20.2 25.0 39.7 63.7 91.7 108 136 148 162 256 303 420 473 537 600
VRNM215 215 21.7 26.9 42.7 68.5 98.6 116 146 159 174 275 326 452 509 577 645
VRNM233 233 23.5 29.1 46.3 74.2 107 126 158 172 188 298 354 490 551 625 699
VRNM250 250 25.3 31.3 49.7 79.7 115 135 170 185 202 320 379 525 592 671 750
VRNM280 280 28.3 35.0 55.6 89.2 128 151 190 207 226 358 425 588 663 752 840
VRNM300 300 30.3 37.5 59.6 95.6 138 162 204 222 242 384 455 630 710 805 900
VRNM320 320 32.3 40.0 63.6 102 147 172 217 237 259 410 486 672 757 859 960
VRNM355 355 35.9 44.4 70.5 113 163 191 241 263 287 454 539 746 840 953 1065
VRNM385 385 38.9 48.2 76.5 123 177 207 261 285 311 493 584 809 911 1033 1155
VRNM415 415 41.9 51.9 82.4 132 190 224 282 307 335 531 630 872 982 1114 1245
VRNM450 450 45.5 56.3 89.4 143 206 242 305 333 364 576 683 946 1065 1208 1350
VRNM475 475 48.0 59.4 94.4 151 218 256 322 352 384 608 721 998 1124 1275 1425
VRNM512 512 51.7 64.0 102 163 235 276 347 379 414 655 777 1076 1212 1374 1536
VRNM555 555 56.1 69.4 110 177 255 299 377 411 448 710 842 1166 1314 1490 1665
VRNM600 600 60.6 75.0 119 191 275 323 407 444 485 768 910 1261 1420 1610 1800
VRNM640 640 64.7 80.0 127 204 294 345 434 474 517 819 971 1345 1515 1718 1920
VRNM695 695 70.2 86.9 138 221 319 374 472 514 562 890 1055 1460 1645 1865 2085
VRNM750 750 75.8 93.8 149 239 344 404 509 555 606 960 1138 1576 1775 2013 2250
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VRNMPerformance after prolonged float charge of fully charged cells
Available Amperes at + 20°C Final voltage: 1.10 V/cell
Cell Type C5 AhHours Minutes Seconds
10 8 5 3 2 90 60 45 30 10 5 60 30 10 1
VRNM 9 9 0.90 1.12 1.75 2.88 3.67 4.25 5.40 5.41 5.99 8.94 11.0 15.3 17.2 19.3 21.4
VRNM14 14 1.40 1.74 2.73 4.48 5.71 6.61 8.40 8.42 9.31 13.9 17.1 23.9 26.7 30.0 33.3
VRNM19 19 1.90 2.36 3.70 6.08 7.75 8.97 11.4 11.4 12.6 18.9 23.2 32.4 36.2 40.7 45.2
VRNM26 26 2.60 3.22 5.06 8.32 10.6 12.3 15.6 15.6 17.3 25.8 31.8 44.3 49.6 55.7 61.9
VRNM32 32 3.20 3.97 6.23 10.2 13.1 15.1 19.2 19.2 21.3 31.8 39.1 54.6 61.0 68.6 76.2
VRNM37 37 3.70 4.59 7.20 11.8 15.1 17.5 22.2 22.2 24.6 36.8 45.2 63.1 70.5 79.3 88.1
VRNM41 41 4.10 5.08 7.98 13.1 16.7 19.4 24.6 24.7 27.3 40.7 50.1 69.9 78.2 87.9 97.6
VRNM44 44 4.40 5.46 8.57 14.1 18.0 20.8 26.4 26.5 29.3 43.7 53.8 75.0 83.9 94.3 105
VRNM54 54 5.40 6.70 10.5 17.3 22.0 25.5 32.4 32.5 35.9 53.6 66.0 92.1 103 116 129
VRNM58 58 5.80 7.19 11.3 18.6 23.7 27.4 34.8 34.9 38.6 57.6 70.9 98.9 111 124 138
VRNM67 67 6.70 8.31 13.0 21.4 27.3 31.6 40.2 40.3 44.6 66.6 81.9 114 128 144 160
VRNM73 73 7.30 9.05 14.2 23.4 29.8 34.5 43.8 43.9 48.6 72.5 89.3 124 139 157 174
VRNM81 81 8.10 10.0 15.8 25.9 33.0 38.2 48.6 48.7 53.9 80.5 99.0 138 154 174 193
VRNM90 90 9.00 11.2 17.5 28.8 36.7 42.5 54.0 54.1 59.9 89.4 110 153 172 193 214
VRNM100 100 10.0 12.4 19.5 32.0 40.8 47.2 60.0 60.1 66.5 99.3 122 171 191 214 238
VRNM107 107 10.7 13.3 20.8 34.2 43.7 50.5 64.2 64.3 71.2 106 131 182 204 229 255
VRNM116 116 11.6 14.4 22.6 37.1 47.3 54.8 69.6 69.8 77.2 115 142 198 221 249 276
VRNM125 125 12.5 15.5 24.3 40.0 51.0 59.0 75.0 75.2 83.2 124 153 213 238 268 298
VRNM133 133 13.3 16.5 25.9 42.6 54.3 62.8 79.8 80.0 88.5 132 163 227 254 285 317
VRNM143 143 14.3 17.7 27.8 45.8 58.3 67.5 85.8 86.0 95.1 142 175 244 273 307 341
VRNM150 150 15.0 18.6 29.2 48.0 61.2 70.8 90.0 90.2 99.8 149 183 256 286 322 357
VRNM161 161 16.1 20.0 31.3 51.5 65.7 76.0 96.6 96.8 107 160 197 275 307 345 383
VRNM166 166 16.6 20.6 32.3 53.1 67.7 78.4 99.6 99.8 110 165 203 283 317 356 395
VRNM183 183 18.3 22.7 35.6 58.6 74.7 86.4 110 110 122 182 224 312 349 392 436
VRNM200 200 20.0 24.8 38.9 64.0 81.6 94.4 120 120 133 199 245 341 381 429 476
VRNM215 215 21.5 26.7 41.9 68.8 87.7 101 129 129 143 214 263 367 410 461 512
VRNM233 233 23.3 28.9 45.4 74.6 95.1 110 140 140 155 231 285 397 444 500 555
VRNM250 250 25.0 31.0 48.7 80.0 102 118 150 150 166 248 306 426 477 536 595
VRNM280 280 28.0 34.7 54.5 89.6 114 132 168 168 186 278 342 477 534 600 667
VRNM300 300 30.0 37.2 58.4 96.0 122 142 180 180 200 298 367 512 572 643 714
VRNM320 320 32.0 39.7 62.3 102 131 151 192 192 213 318 391 546 610 686 762
VRNM355 355 35.5 44.0 69.1 114 145 168 213 213 236 353 434 605 677 761 845
VRNM385 385 38.5 47.7 74.9 123 157 182 231 232 256 382 471 657 734 825 917
VRNM415 415 41.5 51.5 80.8 133 169 196 249 250 276 412 507 708 791 890 988
VRNM450 450 45.0 55.8 87.6 144 184 212 270 271 299 447 550 767 858 965 1072
VRNM475 475 47.5 58.9 92.5 152 194 224 285 286 316 472 581 810 906 1018 1131
VRNM512 512 51.2 63.5 99.7 164 209 242 307 308 341 509 626 873 976 1098 1219
VRNM555 555 55.5 68.8 108 178 226 262 333 334 369 551 679 946 1058 1190 1322
VRNM600 600 60.0 74.4 117 192 245 283 360 361 399 596 734 1023 1144 1286 1429
VRNM640 640 64.0 79.4 125 205 261 302 384 385 426 636 783 1091 1220 1372 1524
VRNM695 695 69.5 86.2 135 222 284 328 417 418 462 690 850 1185 1325 1490 1655
VRNM750 750 75.0 93.0 146 240 306 354 450 451 499 745 917 1279 1430 1608 1786
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VRNMPerformance after prolonged float charge of fully charged cells
Available Amperes at + 20°C Final voltage: 1.14 V/cell
Cell Type C5 AhHours Minutes Seconds
10 8 5 3 2 90 60 45 30 10 5 60 30 10 1
VRNM 9 9 0.87 1.08 1.72 2.4 2.80 3.01 3.44 3.61 4.16 7.26 8.87 12.4 13.8 15.1 16.5
VRNM14 14 1.36 1.68 2.67 3.7 4.35 4.69 5.36 5.62 6.48 11.3 13.8 19.3 21.4 23.5 25.6
VRNM19 19 1.84 2.28 3.62 5.0 5.90 6.36 7.27 7.63 8.79 15.3 18.7 26.2 29.1 31.9 34.7
VRNM26 26 2.52 3.12 4.96 6.8 8.08 8.70 9.95 10.4 12.0 21.0 25.6 35.9 39.8 43.7 47.5
VRNM32 32 3.11 3.84 6.10 8.4 9.94 10.7 12.2 12.8 14.8 25.8 31.5 44.2 49.0 53.8 58.5
VRNM37 37 3.59 4.44 7.05 9.7 11.5 12.4 14.2 14.8 17.1 29.8 36.5 51.1 56.7 62.2 67.6
VRNM41 41 3.98 4.92 7.82 10.7 12.7 13.7 15.7 16.5 19.0 33.1 40.4 56.6 62.8 68.9 74.9
VRNM44 44 4.27 5.28 8.39 11.5 13.7 14.7 16.8 17.7 20.4 35.5 43.4 60.8 67.4 73.9 80.4
VRNM54 54 5.24 6.48 10.3 14.1 16.8 18.1 20.7 21.7 25.0 43.6 53.2 74.6 82.7 90.7 98.7
VRNM58 58 5.63 6.96 11.1 15.2 18.0 19.4 22.2 23.3 26.8 46.8 57.1 80.1 88.9 97.4 106
VRNM67 67 6.50 8.04 12.8 17.5 20.8 22.4 25.6 26.9 31.0 54.0 66.0 92.5 103 113 122
VRNM73 73 7.09 8.76 13.9 19.1 22.7 24.4 27.9 29.3 33.8 58.9 71.9 101 112 123 133
VRNM81 81 7.86 9.72 15.4 21.2 25.2 27.1 31.0 32.5 37.5 65.3 79.8 112 124 136 148
VRNM90 90 8.74 10.8 17.2 23.5 28.0 30.1 34.4 36.1 41.6 72.6 88.7 124 138 151 165
VRNM100 100 9.71 12.0 19.1 26.1 31.1 33.5 38.3 40.1 46.3 80.7 98.5 138 153 168 183
VRNM107 107 10.4 12.8 20.4 28.0 33.2 35.8 40.9 42.9 49.5 86.3 105 148 164 180 196
VRNM116 116 11.3 13.9 22.1 30.3 36.0 38.8 44.4 46.6 53.7 93.6 114 160 178 195 212
VRNM125 125 12.1 15.0 23.8 32.7 38.8 41.8 47.8 50.2 57.8 101 123 173 192 210 229
VRNM133 133 12.9 16.0 25.4 34.8 41.3 44.5 50.9 53.4 61.5 107 131 184 204 223 243
VRNM143 143 13.9 17.2 27.3 37.4 44.4 47.9 54.7 57.4 66.2 115 141 198 219 240 261
VRNM150 150 14.6 18.0 28.6 39.2 46.6 50.2 57.4 60.2 69.4 121 148 207 230 252 274
VRNM161 161 15.6 19.3 30.7 42.1 50.0 53.9 61.6 64.6 74.5 130 159 222 247 270 294
VRNM166 166 16.1 19.9 31.7 43.4 51.6 55.6 63.5 66.6 76.8 134 164 229 254 279 303
VRNM183 183 17.8 22.0 34.9 47.8 56.9 61.2 70.0 73.4 84.7 148 180 253 280 307 335
VRNM200 200 19.4 24.0 38.1 52.3 62.1 66.9 76.5 80.3 92.5 161 197 276 306 336 366
VRNM215 215 20.9 25.8 41.0 56.2 66.8 72.0 82.3 86.3 99.5 173 212 297 329 361 393
VRNM233 233 22.6 28.0 44.4 60.9 72.4 78.0 89.2 93.5 108 188 230 322 357 391 426
VRNM250 250 24.3 30.0 47.7 65.3 77.7 83.7 95.7 100 116 202 246 345 383 420 457
VRNM280 280 27.2 33.6 53.4 73.2 87.0 93.7 107 112 130 226 276 387 429 470 512
VRNM300 300 29.1 36.0 57.2 78.4 93.2 100 115 120 139 242 296 414 460 504 548
VRNM320 320 31.1 38.4 61.0 83.6 99.4 107 122 128 148 258 315 442 490 538 585
VRNM355 355 34.5 42.6 67.7 92.8 110 119 136 142 164 286 350 490 544 596 649
VRNM385 385 37.4 46.2 73.4 101 120 129 147 155 178 311 379 532 590 647 704
VRNM415 415 40.3 49.8 79.1 108 129 139 159 167 192 335 409 573 636 697 759
VRNM450 450 43.7 54.0 85.8 118 140 151 172 181 208 363 443 622 689 756 823
VRNM475 475 46.1 57.0 90.6 124 148 159 182 191 220 383 468 656 728 798 868
VRNM512 512 49.7 61.4 97.6 134 159 171 196 205 237 413 504 707 784 860 936
VRNM555 555 53.9 66.6 106 145 172 186 212 223 257 448 547 767 850 932 1015
VRNM600 600 58.2 72.0 114 157 186 201 230 241 278 484 591 829 919 1008 1097
VRNM640 640 62.1 76.8 122 167 199 214 245 257 296 516 631 884 980 1075 1170
VRNM695 695 67.5 83.4 133 182 216 233 266 279 322 561 685 960 1065 1168 1270
VRNM750 750 72.8 90.0 143 196 233 251 287 301 347 605 739 1036 1149 1260 1371
21833-2-1114
Head Office
AMCO Saft India Ltd. Plot No 10/1A,1B & 1 C, Abbanakuppe,Bidadi Industrial Area,Bangalore, Karnataka, India 562 109
Tel : +91 80 2730 7165 / 7166Fax : +91 80 2728 7716
E-mail: [email protected]
Regional Offices
Delhi BranchAMCO Saft India Ltd. 1202,12th Floor,6, Devika Towers,Nehru Place,New Delhi - 110019
Tel : +91 11 4063 8644 Fax : +91 11 4063 8644
E-mail: [email protected]
Mumbai BranchAMCO Saft India Ltd.No 124-125, 1st Floor, Plot No 75, Vardhaman Market,Sector 17, Vashi, Navi Mumbai - 400703
Tel : +91 22 2780 2568
E-mail: [email protected]
KolkataTel : +91 98 3153 0967
E-mail: [email protected]
Web site: http://www.amcosaft.com