To be honest, I don't know if I'd actually trust my elderly mother to plug her car in every night in the winter.
Originally Posted by PandaBear
Bigger battery won't help too much if she doesn't drive it often. Can she put a Battery Tenderer on it and plug it in when not driving?
Yeah, poking around CRV forums it seems that the bigger battery usually fixes it. Would I be able to fit a 24 with no modifications beyond the new tray? I know the 35 is standard in Canada so it seemed safer to me, but if a 24 fits no problem, they don't cost any more so may as well.
Originally Posted by ondarvr
It appears many people commenting here have little experience with the small batteries in CRVs. The bigger battery is the best solution to this very common problem. The small battery has very little reserve capacity, and sitting unused the small draw from all the electronics in the vehicle can drain it to where it won't start the engine when cold. After a while it won't start it when warm either. Canada gets a higher rated CCA battery, so it has a little more reserve capacity. Honda's also have a dual range charging system, if it doesn't detect a heavy draw it charges at a very low rate. You can trick it into charging at the higher rate by turning on the headlights or anything that puts a load on the battery. Honda will replace the battery under warranty, but you typically get the same weak battery. After the warranty period they will prorate it on the battery warranty, but again you get the same small battery time after time. Going to the larger group 24 battery is what many people do, this ends the all too common dead battery syndrome these vehicles suffer from.