Hello friends.
Two days ago i found that NI-MH battery pack in my wireless desk phone were not recharging any more. I checked it to confirm and found the pack was worn out.It won't recharge any more.It was 3.6v 1500mAH NI-MH.(3 1.2V batteries in series inside the pack)
I purchased the new genuine battery pack,(really costly one it was). every thing went fine new pack recharged and phone worked as it was working before.
I hacked the old battery pack and took out the wiring along with two components inside.(see image 1 for original wiring diagram).
Just for fun i decided to make the battery pack myself. So i put new 1.2V 4800mAH NI-MH batteries (see image 2 ) togather according to original diagram and followed the original wiring schematic which i took care to draw in paint while opening the original battery pack.
I took care to not make any mistake and i am sure i made no mistake. But it did not work.
After 12 hours of recharging the phone goes to shut down in a couple of minutes with my home made battery pack. but the battery pack shows it is recharged and can drive the 4 white led light as long as i want while phone did not turn on untill i attached the charger. the charger is 12v 500mA.
what is the wrong with it?
Two days ago i found that NI-MH battery pack in my wireless desk phone were not recharging any more. I checked it to confirm and found the pack was worn out.It won't recharge any more.It was 3.6v 1500mAH NI-MH.(3 1.2V batteries in series inside the pack)
I purchased the new genuine battery pack,(really costly one it was). every thing went fine new pack recharged and phone worked as it was working before.
I hacked the old battery pack and took out the wiring along with two components inside.(see image 1 for original wiring diagram).
Just for fun i decided to make the battery pack myself. So i put new 1.2V 4800mAH NI-MH batteries (see image 2 ) togather according to original diagram and followed the original wiring schematic which i took care to draw in paint while opening the original battery pack.
I took care to not make any mistake and i am sure i made no mistake. But it did not work.
After 12 hours of recharging the phone goes to shut down in a couple of minutes with my home made battery pack. but the battery pack shows it is recharged and can drive the 4 white led light as long as i want while phone did not turn on untill i attached the charger. the charger is 12v 500mA.
what is the wrong with it?