Just noticed my 2 year old battery (Nitro YB12A-A) was struggling on cranking. I keep it topped up with an optimiser.
Just checked and it needed a massive top up so must have been halfway down cells - agggh!!!
Topped up and back on charge but will it be buggered having got so low or will it recover?
Interesting that I heard using optimisers tends to dry em up, anyone confirm this.