Battery charger

[StevepGT3]

FYI my wife`s car has only done 29,000 km since purchasing new in 2005, it has been plugged in to a projecta charger  100% of the time when it`s not being used, which can be months of inactivity, Drum roll, it still has the original 2005 battery, which tests perfectly.

[donR]

Wow that is impressive! What brand of battery and car is it? Just goes to show that keeping the trickle charger on will save the battery. 

I think it is the frequent deep cycling that kills them, running them too flat then trying to charge them again. 

I wonder if the newer AGM batteries will fair better with just a once a week or once a month top up?

[dan_189]

4 minutes ago, donR said:

Wow that is impressive! What brand of battery and car is it? Just goes to show that keeping the trickle charger on will save the battery. 

I think it is the frequent deep cycling that kills them, running them too flat then trying to charge them again. 

I wonder if the newer AGM batteries will fair better with just a once a week or once a month top up?

I had an optima deep cycle blue top that lasted 7 years, then it sat for two years and went dead, I followed the Optima recommended revival procedure, revived it and sold it! I fully disclosed its history obviously.

My next battery will be an Optima red top - already have the adaptor for the 996 from Yellow Dog motorsports in the US. 

[StevepGT3]

34 minutes ago, donR said:

Wow that is impressive! What brand of battery and car is it? Just goes to show that keeping the trickle charger on will save the battery. 

I think it is the frequent deep cycling that kills them, running them too flat then trying to charge them again. 

I wonder if the newer AGM batteries will fair better with just a once a week or once a month top up?

Varta in a V8 Chrysler 300, without the trickle charger it goes fl;at after about 3 weeks