When we opened the unit, we saw considerable rust on the door to the battery compartment and in the compartment itself. Is it possible that the RBC4 battery leaked even though it's advertised as leakproof?
Also, ince it doesn't look like the rust has damaged the unit itself, can we just clean it up the best we can and input a new battery? The terminals are not rusted.
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the chirp means a power event has occurred and the unit needs reset to continue operation , power events can be a few things ( to large a current was applied as a load to it , the power stayed off till battery failed and it had to charge it back up when power comes back on )
The Back-UPS is fairly straight-forward. The 9-pin connector (at the top of the back) is a serial port (RS-232) for the UPS data (when connected to a computer it will shut down the computer safely during a power outage). The next plugs are RJ-11 telephone jacks; the cord from the jack (wall) goes in on the left (some models have RJ-45 for network protection). The battery protected outlets are the three surrounded by black paint. The other three provide surge-protection only. Do not plug items like printers and scanners into the outlets that provide battery protection.
When was the last time you replaced the batteries? These units will not start with old / failed batteries connected, or without batteries connected.
If you have a voltmeter, check the batteries. Your unit should have two batteries harnessed together. if you check the individual battery, you should see just over 13 volts, together should be around 26 volts. if you see less than 12.5 volts, that would be why the unit will not start.
yes connect the serial cable came with the ups from serial port to ups there is again one serial port to ups the insert the cd came with ups and install it then it will auto turn offf before battery bown