APC DLA1500L doesn't turn on

[light767_apc]

Hi there!

I have just bought a used APC Smart UPS, model: DLA1500L; I have pluged it to the electricity but it doesn't turn on, all the front LED remain off. I have tried to push the 2 front buttons with no success. Probably the battery are exhausted but I was thinking that with the electricity online it would have turned on. I don't know if it's just broken ( so its circuit is broked ) or it doesn't power just because of exaust batteries. Any idea? 

[BillP]

Hi,

The unit will not power on if the batteries are dead. What is the battery voltage? You can check with a DC volt meter.

[light767_apc]

I have tried to measure the voltage of each batteries and it even reach 1v... what if i leave the UPS pluged in on electricity?...any hope that it will recharge a little the batteries? I would like to be usre that the UPS doesn't turn on just because of the batteries before buy new ones. 

[Terry_Kennedy_apc]

1V is well below the level at which the battery will be permanently damaged. You don't want to let them get below 9V, even for a brief time. Since the UPS won't turn on, it won't try to charge the batteries.

Since this is a used unit, you don't know if the batteries died because of a problem within the UPS, or if they died from old age and not being used. Normally I'd say something about deciding how important the equipment you want to connect to the UPS is, and then decide whether to try new batteries or a whole new UPS. Since you bought the UPS used, the equipment connected to it probably isn't that critical. You might want to try new batteries, but make sure you can return them if it turns out there is a problem in the UPS as well.

[light767_apc · Accepted solution]

Well actually the equipment is my desktop pc and all the stuff related ( Audio monitors, Video monitors, ink-jet printers) and I have bought this UPS in particolary because it has a pure sinusoidal output current instead of my old UPS which has an approximated one. My pc power supply is a high efficincy one and I have discovered recently that it could suffers with an approximated-sine wave UPS. So I have decided to buy a better UPS.

I have seen that this APC ups that I have bought is 3 or 4 years old, so the batteries could be dead for aging. I'll try to buy 2 new batteries and see.

By the way, eventually, if it's broken at circuit level ( I hope not..), it could be possible to repair it? I don't know what kind of circuit does it has (modern PCB or more classic circuit..).