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North Central, Iowa | Complaint:
Excessive battery failures.
Problem:
There is a perception that one battery in a dual battery installation causes an overcharge failure of the other battery. This perception is based on past experience with 6-volt batteries, wired in a series.
Solution:
Vehicles with dual 12-volt batteries in a parallel wired system are less susceptible to multiple battery failures. Unlike dual 6-volt battery systems, failure of one 12-volt battery in a parallel wired system does not necessarily damage the other battery. Avoid unnecessary battery warranty by recharging and load-testing returned batteries as the SIB TY82-10-11 states.
Additional Information:
In a parallel wired system with dual batteries, the failure of battery "A" can cause battery "B" to discharge through the failed "A". This discharge cycles the good battery more than normal, but does not necessarily damage it. During recharge, battery "B'S" voltage will increase, and then limit the recharge current to normal levels. If two batteries are returned by a customer, one battery failure does not mean both should be replaced. The other battery may be good and only discharged. Recharge and load-test all batteries.
In a series wired system with dual batteries, (commonly 6-volt batteries); the failure of battery "A" could lead to overcharge damage of battery "B". The high charging current demanded by the failed battery "A" is forced through the good battery "B". If this excess | |
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jd 4250 convert 6 volt to 12 volt
