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Posted on Jan 02, 2017
Hi! depending on how long you had the UPS the batteries only have a limited life. So lets say you had this UPS for a wile and the batteries are discharged often, the batteries can fail to hold a charge after about three years. If it is likely a year old I would check into the warranty. But three to four years may need replaced and can usually be done by an end user. PS: the inverter may appear not to work at all or just shut down with a bad battery as a safety mechanism. If a new battery or set of batteries does not remedy the problem, then there is a problem with the electronics. If I know the symptom of witch I can help with that as well.
Posted on Nov 21, 2008
This a possible failure of the voltage detection circuit in the inverter main board and requires the fault be identified by checking the voltage/current feed/limiter to the battery.
Once when the battery voltage has reached the threshold set up the charging should stop and then the circuit will analyse the voltage on the board to trigger the charging to be put ON.
This can be a failure of the detection circuit and if not checked can damage the battery.
Posted on Jun 20, 2011
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