Re: Cyberpower PR1500 won't charge battery
I have not. It's still on the bench. Not sure if I should replace that one cap or not. Considering just purchasing a new one as sad as that is....
jr219
New Member
Last Activity: 05-30-2018, 11:19 AM
Joined: 04-29-2018
Location: Montverde, FL
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Re: Cyberpower PR1500 won't charge battery
I can do that. I haven't tested anything further. Forgive me, but I'm more of a software and digital guy...
If you let me know what I would need to test (ie: look for chip x, which should run to cap X and measure the output, etc) I can do it and report back.
thanks,
-jr...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
This was between BAT+/BAT- with the UPS plugged in but not turned on. It will *not* turn on without batteries (but it will stay on if you remove batteries from it while in AC mode)...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
Yes, that is with no batteries connected.
I'm getting about 35VDC on the BAT+/BAT- terminals. I am thinking that I need to be getting ~55V to charge them. 48V batteries.
-jr...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
Thanks. Bud!
For mine, I'm getting 35V.. I don't know if the others were getting 0V.
So I should replace C42? What about the others? In previous posts, you mentioned replacing a few others while the board was out?
I realize the schematic mentioned earlier doesn't line up exactly.
I have a scope and talking to another friend of mine who looked at the schematic, he had me look at pin6 of the 3845B and I did get a square wave out of that.
Thanks again...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
Let me know if these or you need additional ones.
C40 on mine is not axial?...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
Here are some photos of the board I am working with. I'm trying to identify the charging circuit, I believe it is in this area. I assume that the component numbers (C40) might not be the same, but the components are, or I can trace them from another component somehow?
Thanks for any advice!...Leave a comment:
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Re: Cyberpower PR1500 won't charge battery
Thanks for this thread. I have a PR1500LCDRT2U, which is no longer outputting high enough voltage to charge the batteries. Has 4 batteries in series, but is only outputting about 30V when plugged in. This results in the batteries discharging over time and the unit failing to turn back on.
I've been reading through this thread and found many discussions about a replacement of some caps (C40?). My board seems to be a bit different than the ones discussed here.
I'll likely be back with some photos and seek advice...Leave a comment:
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Re: New Members - please post your introductions here
Hello.. Here looking to repair a Cyberpower PR1500 which appears to no longer be charging. There was another member here with that same problem! Wanted to review his photos, etc.Leave a comment:
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