Battery Types and Charging Chargers

Messages
452
Location
illinois, usa
I have a car toy that seldom gets used and during winter I usually have problems starting the car. I put a normal 2amp charger and said that it was full. The car wanted to start but not good enough until a put a regular 10 amp charger did I mange to start the car.

I also noted that this battery is 6 years old and AGM battery, I wonder if I am the one killing the battery by not using the AGM type of chargers. Are the chargers actually neededo_O

IF so I may just buy a regular acid battery since all the other cars are like these!!!
 
Messages
40,390
Location
Great Lakes
Get a charger/maintainer with an AGM mode, and hook it up to the battery every few weeks, if the car is seldom driven and not driven long enough.

My old BMW is like that. It sits outside, and is usually just short tripped here and there, once a week or so. Not good for the battery, especially during winter.
 
Messages
1,423
Location
Warner Robins, GA
I'd say you need to do a load test on the battery. The voltage can show high enough to give an indication of being fully charged, but the battery is actually bad. That said I've read where AGM's do charge to a higher voltage than normal lead acid battery. Was discussed some on this thread:

 
Messages
1,062
Location
Arizona
get a smart charger/maintainer like a CTek or Schumacher and leave it attached to supply the milliamps car electronics use even when shutoff. Other choice is to disconnect the battery cable.

Your old battery is toast only holding a surface charge. Nothing wrong with AGM ...its a battery
 

LazyDog

Thread starter
Messages
452
Location
illinois, usa
get a smart charger/maintainer like a CTek or Schumacher and leave it attached to supply the milliamps car electronics use even when shutoff. Other choice is to disconnect the battery cable.

Your old battery is toast only holding a surface charge. Nothing wrong with AGM ...its a battery

So what happens when a regular charger is used on a AGM Battery????
 
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