Post by thread:[EE]: fast lead-acid battery charger

Hi! Does anybody have any plan or a link to a lead-acid baterry charger. It should be as fast as possible, since the capacity of battery is 250Ah and the charger would be powered from portable 220VAC generator. Regards, Samo __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

12v 40A switchmode and wind the voltage up to 14v (assuming 12v battery) Batteries need to be constant voltage charged and any old psu including a transformer rectifier will do just limit the ac current in the battery to less than 7% of the battery capacity and don't try and charge above C2 (1/2 AH rating) or you will buckle the plates. Fastest charge is two rate where you take the battery to 2.35vpc for a period until the current drops to <10% capacity then drop the charge rate to 2.27vpc until the battery is required (this is used on cyclic applications eg forklift) typically 8 hour boost charge followed by an indefinite float period. Regards Steve... {Original Message removed}