Re: Back-UPS RS 800 Not charging
The original batteries are dust so I think I may set up an array of old refurbished batteries and charge them with my solar panels and have them feeding the main batteries wen it is on battery power then that way if the power is gone or I can just unplug it I will have free power.
But that is all in the distant future.
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Re: Back-UPS RS 800 Not charging
no idea, but i do have a trick.
heat each pin/pad with yur iron - if it smells like catpiss then it's leaked.Leave a comment:
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Re: Back-UPS RS 800 Not charging
SMD caps - bastards!
i hate those things!!Leave a comment:
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Re: Back-UPS RS 800 Not charging
Here are the pictures of the board. Let me know if you need close ups of any particular part of the board.Attached FilesLeave a comment:
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Re: Back-UPS RS 800 Not charging
That link shows bad start-up cap for that SMPS section. So we need to see your board to locate the SMPS in your model.Leave a comment:
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Back-UPS RS 800 Not charging
Hello guys I have a Back-UPS RS 800 that refuses to charge the batteries.
It used to work great but eventually it died. I took the batteries out to find they were at 0.1 volt (in series) so basically 0.05 volts per battery. I did the usual adding water and charging on a universal powersupply but there were shorted cells. I brought in a lawn tractor battery and a small atv battery and hooked them up in series. They didn't last very long under a pc load but they hadn't been charget forever. After a while of tinkering with it the batteries got too low and the backup started giving me the usual your batteries are screwed warning.
It doesn't put out any voltage and when the batteries are hooked up the voltage is less than when they are disconnected. http://www.heime.org/post/17 This post is for the 500 model and it shows that the issue is a bad cap but I was unable to locate such a capacitor on this board. If you guys could point me to this cap or the actual issue I'd be real happy.
Right now all it is is a surge protector.
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Hello, all.
Cyberpower Battery Backup Unit.
I bought two new ML18-12 batteries through Amazon (They have already refunded my money for the two batteries as we thought the batteries might have been bad.)
When I got them in, they were not fully charged. I connected them to the UPS and waited 24 hours before connecting any networking equipment.
In parallel, they read 24v, but within 24 hours, the meter on the front of the unit dropped from 4 to 3 bars on the battery charge indicator.
Checking the voltage, it was down to 22v.
I quickly removed everything... -
Hello,
i have similar problem as https://www.badcaps.net/forum/showthread.php?t=37828
QUOTED
-It works on charger (without battery connected-only charger)
-It works on battery (without charger connected-only battery)
-& it also works when plugged in battery & charger, but it's not charging the battery
//Confirming, i have same issue, but problem started from charger, centre PIN is outputing 10V+ and jumping randomly 19V
and..
QUOTE
The IC cannot maintain the input current level... -
Looking for some help with this one if anybody can assist please? I have an HP Probook 470 G4 Laptop which recently started to intermittently failing to turn on, with intermittent white LED light(charging LED) by the charging port when it should have been charging and showing an orange LED instead. Definitely some sort of gradual failure. Now the laptop fails to power on at all, no charging LED, no Power Button LED either - seemingly dead.
Stripped down to the bare motherboard. The original HP battery, when disconnected from the motherboard, is reading 0.00v - possibly some sort of protection... -
๐งต [Help] Acer Aspire 5 A517-52G โ Onboard RAM Removed, BIOS Mod Done, Battery Not Charging
Hi everyone,
I have an Acer Aspire 5 A517-52G-53NB laptop.
The onboard (soldered) RAM was faulty, so I physically removed the chip.
I also successfully modified the BIOS using the SPD Removal Tool โ the laptop now boots fine and works with an 8โฏGB DDR4 SO-DIMM installed.
โ System status:- BIOS mod is done (SPD removed)
- Laptop boots to Windows normally
- RAM is detected and stable
โ Problem:
The battery is not charging:- Power adapter
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I would like to share my experience about charging issues with Dell power supplies with the tech community. I am working on a Dell Inspiron 5590, Mainboard 18778-1 with charging problems. The device can be switched on and works so far, only the message appears at startup:
Alert! The AC power adapter wattage and Type cannot be determined. The battery may not change. The System will adjust the performace to match the power available.
The power supply unit is not recognized in the Bios and the charging process is set to "idle". I use original Dell battery, type...
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