if you had a perfect charger that would be fine but you don’t and there is no such thing.

which maybe lead to over discharge and over charge to the rechargeable betteries.As you know overdischarge and over charge will damage the battery cycle life.I was charging AAA cell on a dumb charger that charges at 0.05C (I checked this, 35mA for a 900 mAh cell).

I had to be creative to check the voltage of this thing since you can’t access the contacts for the radio once the case is closed, and you have to close the case in order to plug it it.

Voltage of affected batteries will lies between 0.01V - 0.04V. Would the cell suffer any negative side affects if it was repeatedly charged to only 90% of charge each cycle, maybe by charging at .2C and terminating when deltaT just starts to increase. As far as I understand charging, this would mean the old lead acid charger would be able to charge these battery packs with 500mA initially but would probably switch to some “Topping charge” mode (if such a thing is implemented) at about 1,3V cell voltage until 1,39V cell voltage is reached.While the NiMH cells would not be fully charged at this point (I expect something around half full), this would still be more capacity than the original lead battery had.By submitting this form, you are providing your express consent to receive electronic communications from Battery University and the Battery University Science and Technology email newsletter, powered by ArcaMax.Learning the basics about batteries - sponsored by Cadex Electronics Inc.© 2020 Isidor Buchmann. I was all ready to settle on NiMH, until I found Low Discharge NiMH…and then the new LiFePo4 batteries.My design concept is to keep this as small as possible. If the cells do not keep 14.4v once the charger is removed, then you most likely have a bad cell. Let’s say that I don’t care about how long will it take to charge it but only about the lifespan, what would you suggest?

At such a low current, how would you advise detecting when it is full enough?NiMh termination is typically based on NDV (negative delta voltage) of about 5mV. Also, when the batteries have reached 1.33V each during charging, the charging current measured is 50mA.There is a only a single red LED on the base station that shows the batteries are being charged and no other indication that the batteries are fully charged or not.Since I am a electronics guy, I know how to build into the base station a voltage clamp circuit to limit the battery charging voltage to somewhere between 3.0 V to 3.2V to prevent overcharging.

In order to completely charge a battery, the charger voltage must be greater than the fully-charged voltage of the battery. by the way this battry is new i made it by my self in serialDear omar, would you please tell how do you set the imax b6 charger? This method of charging is known as the “step-differential charge” method. Is the above procedure valid/possible for a NiMh battery?Also I read somewhere, that Nickle batteries act by the charging current. if you use the 5.5V 100mA to charge a single 1.2V 2100mAH cell . Can I kill MiNH batteries by over trickle charging them? The voltage read at that point plus .6v, better plus 1.2v, will be the minimal amount needed. The coulometric charging efficiency of nickel metal hydride batteries is typically 66%, meaning that you must put 150 amp hours into the battery for every 100 amp hours you get out. Battery University monitors the comments and understands the importance of expressing perspectives and opinions in a shared forum.