Battery charger recommendations please

[aussiblue]

Probably more than a century ago now. The first lead-acid batteries consisted of glass cells that were enclosed in tar-lined wooden boxes. A damp concrete floor could cause the wood to swell, breaking the glass inside. But it has also been suggested that old hard rubber cased car batteries had cases porous enough that battery acid could seep through it and create a conductive path through the damp concrete, draining the battery.