A UPS Device Powers On But Does Not Hold Charge Repaired
A guy and a close friend of mine brought this UPS device for repair and explained that this device powers on fine but it does not hold charge.
Since the device is needed urgently I opened up the device and checked what might be the fault.
From my experience working on these devices not holding a charge means bad batteries and when the device was opened and checked, my suspicion was very correct, take a look.
Do you see the fault? If you pay attention to the batteries you would see that they are swelled up but if this was not clear enough maybe this one would help.
Both batteries were swelled bad badly and needed replacement.
I called some shops for price on these batteries and found a very good price including delivery to my shop.
Before the end of the day I had these batteries in the shop ready to be installed in their new home (LOL).
Connect the positive to the positive and negative to the negative and in the center negative and positive connected together to produce the right specified voltage for this UPS.
I called the customer for pick up and while waiting, I started charging the batteries and it was working according to specs.
The customer showed up and collected his repaired device and kept thanking me for repair. A happy customer is the purpose of my work and to that I could say
Mission Accomplished.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
P.S- Do you know of any your friends who would benefit from this content that you are reading now? If so, forward this website to your friends or you can invite your friends to subscribe to my newsletter for free in this Link.
Note: You can check his previous article on A Blue Tooth Speaker With Broken Charging Port Replaced. Model ANKER
(41)Dislikes
(0)
18 Comments
Leave a Reply
Albert van Bemmelen
August 28, 2024 at 2:06 pm
I thought that these UPS devices normally all worked on 12V batteries? But yours was unexpectly operating on 24V. Because I once fixed such a defect UPS and it only used a 12V battery that was rip and also needed a new one. Luckily you found 2 new batteries for a very good price including delivery!
Parasuraman S
August 28, 2024 at 5:01 pm
In all probability, they are connected parallel!
Albert van Bemmelen
August 28, 2024 at 11:46 pm
Though it looks like they were here placed in series doubling the 12V voltage at same current?
Waleed Rishmawi
August 29, 2024 at 2:37 pm
albert: sorry, yes the are connected in series.
Waleed Rishmawi
August 29, 2024 at 2:29 pm
Parasuraman: yes there are connected in parallel. have a blessed day my dear friend.
Waleed Rishmawi
August 29, 2024 at 2:40 pm
Parasuraman: sorry they are conneceted in series no parallel. have a blessed day
Waleed Rishmawi
August 29, 2024 at 2:28 pm
Albert: there are connected in parallel. I have seen UPS has more than four batteries and changing the batteries on those will break someone's budget for they are very costly but in this case I was able to replace with new batteries because they were cheap to find. have a blessed day
Mark
August 28, 2024 at 2:25 pm
Great job Waleed. I use these batteries regularly in my workshop for testing purposes. I also use them in class at the college as they are a great, light weight power supply for demonstrations.
Waleed Rishmawi
August 29, 2024 at 2:30 pm
Mark: thanks man. a power supply will do the same job though with many outputs. have a blessed day
Parasuraman S
August 28, 2024 at 5:02 pm
Good job, dear friend!
Waleed Rishmawi
August 29, 2024 at 2:31 pm
Parasuraman: thanks dear friend. have a blessed day
Yogesh Panchal
August 28, 2024 at 6:57 pm
Good Job!waleed
Waleed Rishmawi
August 29, 2024 at 2:31 pm
Yogesh: thanks man. have a blessed day
Imoudu.O
August 28, 2024 at 9:54 pm
I thought connecting batteries in parallel increases current rather than voltage, good job though!
Waleed Rishmawi
August 29, 2024 at 2:42 pm
Imoudu: they are connected in series not Parallel increasing the voltage to 24 volts. have a blessed day
Mark J
August 29, 2024 at 12:00 am
Waleed Rishmawi The few UPS that I have worked on had only one battery. Never repaired one with two. Good job on the repair.
Waleed Rishmawi
August 29, 2024 at 2:43 pm
Mark: there are UPS devices that has more than two actually and they come in different sizes and for different purposes. have a blessed day
Zaki
October 11, 2024 at 7:46 pm
Do you perhaps can show how you replace those battery? Because i have the same ups and confuse how to replace those battery