breakshift
Member
I was clearing out the attic the other day and I came across what looks like a very big battery. It looks fairly simple to use, but I would like to see what people make of it and how I should use it (safely). It has a mains (UK) socket on one side and what must be a charging wire on the other side. The charging wire is not attached to a plug, just the bare wires (brown, green/yellow, blue). There is also some info on the top:
TRANSFORMER
TO BRITISH STANDARD 171: 1959
kVA: 0.75 FREQUENCY: 50
PRIM. VOLTS: 240 VEC. GRP.: 71
SEC. VOLTS: 240
SEC. AMPS: 3 PHASES: 1
IMP. VOLTS: (blank) SERIAL NO.: 193429
Some pics:
https://imageshack.us/photo/my-images/850/imag0331h.jpg/
https://imageshack.us/photo/my-images/685/imag0332rt.jpg/
https://imageshack.us/photo/my-images/59/imag0333i.jpg/
https://imageshack.us/photo/my-images/861/imag0334e.jpg/
I’m assuming this is some kind of back-up battery in case of a mains failure? If so, I would like to use it. I assume that I can charge it by connecting the wires up to a plug and supplying mains to it. But how can I tell when the battery is fully charged? Will I damage it if I leave it charging too long?
Also, there is no info about how big the battery is (i.e. Ah), anyone care to estimate based on the pictures?
Thanks for any help
TRANSFORMER
TO BRITISH STANDARD 171: 1959
kVA: 0.75 FREQUENCY: 50
PRIM. VOLTS: 240 VEC. GRP.: 71
SEC. VOLTS: 240
SEC. AMPS: 3 PHASES: 1
IMP. VOLTS: (blank) SERIAL NO.: 193429
Some pics:
https://imageshack.us/photo/my-images/850/imag0331h.jpg/
https://imageshack.us/photo/my-images/685/imag0332rt.jpg/
https://imageshack.us/photo/my-images/59/imag0333i.jpg/
https://imageshack.us/photo/my-images/861/imag0334e.jpg/
I’m assuming this is some kind of back-up battery in case of a mains failure? If so, I would like to use it. I assume that I can charge it by connecting the wires up to a plug and supplying mains to it. But how can I tell when the battery is fully charged? Will I damage it if I leave it charging too long?
Also, there is no info about how big the battery is (i.e. Ah), anyone care to estimate based on the pictures?
Thanks for any help