Electronics > Beginners
Charging ubl aaa batteries
(1/1)
fixit7:
The aaa alkaline batteries went out on my tv remote.
I decided to use my NiMh ubl aaa batteries. 1100 mAh.
They are currently showing 1.31 volts.
And they work ok in the remote as is.
My charger is the manual type.
It charges those type at 150 mA.
I want them fully charged since they are 1.2 volts versus 1.50 for the alkaline.
I would like to know how much longer to charge them.
Thanks.
Audioguru:
Alkaline batteries are not rechargeable. If you try charging them then they might explode or leak.
mariush:
Alkaline batteries that are NOT rechargeable have a higher voltage than rechargeable batteries.
At their peak, fully charged state, they're close to 1.65v but they'll quickly discharge to around 1.5v and then gradually discharge and give most of the energy until you get near 1v.
Rechargeable batteries are different, their nominal voltage is 1.2v and when they're fully charged they're close to 1.35v - it's quite possible your charger simply stops charging them at 1.31v (a bit below 1.35v as safety)
Just like the regular alkaline batteries, rechargeable batteries will give most of their energy down to around 1v.
fixit7:
--- Quote from: mariush on June 13, 2019, 05:19:27 pm ---Alkaline batteries that are NOT rechargeable have a higher voltage than rechargeable batteries.
At their peak, fully charged state, they're close to 1.65v but they'll quickly discharge to around 1.5v and then gradually discharge and give most of the energy until you get near 1v.
Rechargeable batteries are different, their nominal voltage is 1.2v and when they're fully charged they're close to 1.35v - it's quite possible your charger simply stops charging them at 1.31v (a bit below 1.35v as safety)
Just like the regular alkaline batteries, rechargeable batteries will give most of their energy down to around 1v.
--- End quote ---
I changed post and added nimh.
Navigation
[0] Message Index
Go to full version