The problem with car/truck/tractor batteries etc... is how they are stored and for how long. I've worked in shops that sold batteries and have seen some sit on shelves for 2 years before being sold. Just sitting not being regularly charged or discharged. Also if you go somewhere and see new batteries sitting on the ground, do not buy them. Batteries must be stored off the ground.
Yes most batteries will a have a production date sticker, but how easy are they to peel off and replace?
Yes most batteries will a have a production date sticker, but how easy are they to peel off and replace?