Hi guys,
I have been using Ni Cd batteries for more than 20 years in several devices that I have. But now, with the Ni MH batteries at the same prices that Ni Cd, but with much more power in the same size, I got some of these batteries to use in cameras and other devices.
The problem I am struggling now, is about how to charge these batteries in the right way.
I have seen AA batteries, rated at 1500 mA, that have to be charged at 205 mA. I thought that the right procedure was to charge it with 10 % of the total amount of current stored in the battery.
I am interested in the Eveready AA Ni MH rated at 2100 mA, but there is nothing on the battery that specifies the current for charging it.
Should I use 210 mA like a conventional Ni Cd?? :?:
Is it 14 hours the right timeframe for charging Ni MH?
If anyone knows more about this matter, I would appreciate any help.
I got a pretty simple circuit with a Mosfet that develops the current and protects the cells, but I m not sure about on how many miliamps I have to set the current to avoid any life shortage on the cells.
Thank you very much in advance
Have a very good day
Al
I have been using Ni Cd batteries for more than 20 years in several devices that I have. But now, with the Ni MH batteries at the same prices that Ni Cd, but with much more power in the same size, I got some of these batteries to use in cameras and other devices.
The problem I am struggling now, is about how to charge these batteries in the right way.
I have seen AA batteries, rated at 1500 mA, that have to be charged at 205 mA. I thought that the right procedure was to charge it with 10 % of the total amount of current stored in the battery.
I am interested in the Eveready AA Ni MH rated at 2100 mA, but there is nothing on the battery that specifies the current for charging it.
Should I use 210 mA like a conventional Ni Cd?? :?:
Is it 14 hours the right timeframe for charging Ni MH?
If anyone knows more about this matter, I would appreciate any help.
I got a pretty simple circuit with a Mosfet that develops the current and protects the cells, but I m not sure about on how many miliamps I have to set the current to avoid any life shortage on the cells.
Thank you very much in advance
Have a very good day
Al