After discussion on NewtoTalk, I decided to try prepare custom battery pack for eMate 300. The original one contain 4 AA NiMH 1.2V cells.
I did some research and I found plastic holder for AA batteries.
Adaptation of this holder should not be a problem. What I need to do is:
- solder positive and negative wires to connector from original eMate 300 battery
- stick thermistor (temperature sensor) somewhere near new NiMH cells
That custom battery will be much better, because in case of NiMH cells wear, it is possible to replace them quickly, without desoldering or cutting. The second advantage is the possibility of using NiMH cells with a larger capacity, which will extend the eMate 300 operating time. Of course, time needed to charge battery will be longer, but this is not a problem at all. At the end, that custom battery will cost much less that original replacement. So, only benefits 🙂
Have you tried this AA support in your eMate?
Isn’t it too long?
Thank you.
Hey there
I have tried to do the 4 AA nimh with plastic holder like you have pictured and for some reason my unit starts to charge the batteries and then says Fault. This stops the charging. What am I doing wrong and can ya help ? Thanks.
Help. I now havebattery saying its charging and then says fully charged (no long give me a fault. bUT when i unplug ac adaptor it turns off and wont come back on with out me plugging adaptor back in.I bought AA charger for shits and giggles to fuly charge batteries and and then return them into the plastic 4 battery holder wjen the charger says its charged. (but it says charged but theres no bar showing how much battery is left etc. plx help i am pretty savy with stuff like this an i can at a loss.