The message 20051117090122.GA18892@areti.co.uk from Chris Green chris@areti.co.uk contains these words:
A bigger battery won't take more charging current, it'll just take longer to charge. The internal resistance of just about *any* lead acid battery will be negligable compared with that of the charging circuitry, the charging circuitry will set the current at any given voltage and will not be affected by the (negligable) internal resistance of the battery.
That's what *I* thought, but I used a plug-in lead-acid charger block meant for a burglar-alarm-sized battery to charge a small motorcycle battery - and the charger burnt out.