TECH FORUM

摘要

I have a door access control system that uses 110 VAC normally but has a 7 Ah battery for backup power. This only offers a very short time period of battery power should the AC fail. Its built-in power supply/charger is rated at 1A. My question is, what are the rammifications of substituting a much larger battery for the 7 Ah one? Aside from the possibility that once depleted, a higher amp hour battery would take longer to recharge and possibly not even recharge fully, are there any other detrimental possibilities to the system or the battery?