I know a few of us have collected a number of free UPS units with bad
batteries. Has anyone tried just using the inverter part as emergency
power using much bigger batteries. I have a golf cart with 6 6v deep
cycle batteries. I was thinking if I string 4 of them together, it
should power a 1KW UPS. I am not sure the UPS charger is up to the
task of charging them tho.
In alt.home.repair, on Tue, 05 Sep 2017 20:09:25 -0400,
Not much bigger but maybe twice as big. I had a UPS and when the
battery wore out, I broke out the thin plastic ribs that held the
battery in place and I had room from one twice as big. I suspect they
sold a model that used such a battery and that they used the same forms
to make the case, except the forms allowed for different ribs.
I'm not sure what you're using this contraption for. In my case, I
didn't care how long it took to recharge the battery, since there was
unlikely to be two long power failures in a row, without some time in
between, probablay the maximum required recharge time. OTOH if there
were a series of outages, a battery twice as big will last twice as
The UPS charger won't be overloaded by 4 discharged batteries in
parallel, anymore than by one. Unless even one makes it close to
But in your golf cart they are in series. You won't be able to recharge
all of them without some complicated switch to put them either in
parallel or to charge them 1 or parallel 2 at a time.
Instead of UPS, try Fedex.
No, the 4 6 volts in series will be 24 volts - quite standard for 1Kw
UPS units. My 1Kw unit runs 48 volts - except for the extended run
which runs 54 volts and is designed to chargew an external battery
pack. I THINK it is an 8 amp charger on it, while my 24 volt units are
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