One Powertech and one Prolink PRO 700 ups both 650 VA

Want to sell two ups both 650 VA, one Powertech and one Prolink PRO 700. None of the ups has any warranty left. Both made in china.

Powertech ups has battery but it does not recharge and cannot give backup even for a second. One can replace the battery in Powertech ups and can use it since the body circuit is still functional.

The Prolink ups does not have a battery. One can install a new battery in Prolink ups and can use it since the body circuit is still functional. There is one problem with the Prolink ups though. One of the pins of the 3 pin plug has rusted, so one has to change the 3 pin plug with a new one and then use it.

Both UPS can give backup up to 8-10 minutes depending on load.

Price of Powertech ups = Tk 1500
Price of Prolink ups = Tk 1000