CTEK: Battery Know How and Management
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Transcript of CTEK: Battery Know How and Management
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Battery Know How and Management
Benefits of Battery Management
With effective battery management
–Reduce ‘warranty ‘ handling costs•Replacements, call outs, uncharged labour
–Reduce end user downtime–Maximize equipment productivity–Increase customer satisfaction–Longer, more effective battery life– A better environment
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Desired Outcomes
At the end of this session I hope to have shared with you
– How a lead-acid battery works– Different lead-acid battery types– Battery problems and their causes– effective battery charging method– ideas and practical experience on how to improve dealer and consumer battery experience
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CTEK – Battery Charger Specialists.
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‘The Smartest Battery Chargers in the World’
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CTEK Brief History
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Battery Knowledge
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Purpose of the Battery
Despite many developments in Lead Acid batteries the functions remain the same
–Provide starting power–Power accessories when engine off / idling
–To stabilize charging voltage–Smooth voltage spikes–Absorb voltage surges
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Basic Battery Construction Batteries are made of
five basic components:– A resilient plastic
container. (1)– Positive (lead
dioxide)and negative (sponge lead) plates.(2)
– Plate separators.(3) – Electrolyte, a solution
of sulfuric acid and water ‘battery acid’. (4)
– Terminal Posts,the connection point between the battery and whatever it powers. (5)
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The Battery Cycle
Battery Discharge– providing voltage
source for load– electrolyte has high
sulfuric acid content when highly charged
– acid reacts with plate material to create current
– acid content of electrolyte reduces
– If reduced too far results in ‘flat’ or deep discharged battery
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The Battery Cycle
Battery Discharge– providing voltage
source for load– electrolyte has high
sulfuric acid content when highly charged
– acid reacts with plate material to create current
– acid content of electrolyte reduces
– If reduced too far results in ‘flat’ or deep discharged battery
Battery Recharge– external voltage
(pressure) created to push current (amps) in to the battery
– acid forced out of the plates and back in to electrolyte
– If not correctly controlled will lead to undercharge or overcharge
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The 12V Battery Six cells of 2.12V Each Effective battery
operation only at 12.45V+
Readings below 12.4V require immediate corrective action to avoid ‘deep discharge’ and associated recharging problems
Battery Open Circuit Voltage vs. State of Charge
12.72V 100%
12.45V 75%
12.24V 50%
12.06V 25%
11.89V 0%
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Battery Types- Summary
• Robust• High self-discharge• High water consumption
• Low self-discharge• Low water consumption• Should not be discharged more than 50% due to stratification
• Low self-discharge• No water consumption• Deep-cycle – highest # of cycles
• Low self-discharge• No water consumption• Deep-cycle – many cycles
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3
10
30
100
300
Size[Ah]
14-28Ah
Battery Types and Applications
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Battery Problems
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Most warranty returns are just undercharged!
6.8%
4.2%0.1%
3.8%
85.2%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
Root Cause
Damagedseparators
Defect electrodes
Welding
Othermanufacturingdefects
No defects
178 returns evaluated
To
day
’s p
rob
lem
s
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Battery Problems – Seasonal Use Equipment No1 failure reason for Ride
On’s
Often batteries undercharged at point of delivery – resulting in battery failure within a few weeks
Charging equipment unable to recover / restore batteries
Long periods of inactivity
Exposure to temperature extremes in use and in storage
Regulator / alternator unable to charge batteries to full capacity
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Battery Problems and Causes
Sulphation Overcharge / Fluid Loss Stratification
• Undercharge (recovery from deep discharge, charging system)• Overcharge(charging system)• Temperature extremes• Parallel loads• Inactivity (seasonal use)• Lack of battery awareness at all levels
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Effective Charging
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Battery Charger Evolution
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Linear Basic Linear Automatic Intelligent Intelligent multi stage
Battery Problems and SolutionsSulphation Overcharge Stratification
Desulphation Charge control Recondition
SOLUTIONS
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The CTEK Approach – Total Control
Desulphation AnalyzeSoft Start PulseAbsorption FloatBulk Recondition
= Voltage
= Current
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CTEK Technology Promise The safest, most
effective way to – Recover batteries– Charge batteries– Maintain batteries
Maximise battery life Reduce operator costs Ensure vehicle
reliability
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Practical Steps in Battery Management
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Comfort Indicator
Green:
(≥12.7V) Battery fully charged
Yellow: (<12.7V - ≤12.4V)
Charging battery recommended to avoid stratification
Red:
(< 12.4V)
Charging of Battery needed to ensure starting and avoid sulphation
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Usage Tips When connected to the
charger, the Comfort Indicator flashes green regardless of the charge status of the battery
The battery needs 30-60 minutes to ‘settle’ and to be able to show the true state of charge on the Comfort Indicator status lights.
For the Comfort Indicator to give an accurate reading of battery status the battery itself should not be in use. (Ignition off)
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Comfort Indicator Variants
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Case Study – Car Showroom
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Problem
– Battery discharge due to repeated demonstrations of vehicle accessories
Solution– Showroom charging
programme using CTEK charger and Comfort Indicator
Results– Battery warranty
returns on newly supplied cars almost eliminated
Used by VW, Audi, Porsche, Skoda
Audi Promotional Display
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Thank you for your attention
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