09-24-2010, 08:01 PM
As the subject reads: replaced the batteries in an APC SmartUPS 1250 with new batteries from Gruber. Gave it line power, charge meter was close to full. Plugged in a load (Mac Mini, 2 LCD monitors, assorted router and cable modems), but load light never registered. Charge meter continued to decrease down to a single flashing LED over a multi-day period.
I'm thinking something is messed up with the charging circuit and the initial charge on the batteries plus a low trickle charge kept it going for a couple days. I'm going to open it back up this weekend and put a meter on the battery contacts to see how much voltage is passing, but does anyone remember any tricks for kick-starting this thing after new batteries are put in? FWIW, I re-powered an APC SmartUPS 1400RM at the same time with new Gruber batteries and it went back into service without any complaints.
I'm thinking something is messed up with the charging circuit and the initial charge on the batteries plus a low trickle charge kept it going for a couple days. I'm going to open it back up this weekend and put a meter on the battery contacts to see how much voltage is passing, but does anyone remember any tricks for kick-starting this thing after new batteries are put in? FWIW, I re-powered an APC SmartUPS 1400RM at the same time with new Gruber batteries and it went back into service without any complaints.