> Alrighty, well this L200 should supply a set voltage and a set current, so > this should be fine... any extra current drawn by the load would > presumably > be pulled from the batteries right? > > Thanks > > Josh If the power supply is truly constant voltage, then any increase in load will not affect the voltage, so the battery never sees a voltage change. As far as it knows, it's still float charging. So, the charging current and load current are both supplied by the charger, unless the charger goes away (AC mains drop). This soft of float charging is fairly common for standby battery use. It does not charge as quickly as voltage limited constant current, but it's very simple. Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist