ldeveraux wrote: ↑Mon Mar 25, 2024 3:12 pm
VEGETA wrote: ↑Fri Mar 22, 2024 8:36 pm
aha no problem man, i hope that you now get the purpose and use of this mod board.
if there is any question please state so.
So I'm on the fence here because I bought another solution years ago and the battery is still dead on every boot. How long will the battery hold charge? How often do you need to power on the DC and for how long do you need to leave the DC on until the battery is charged?
The battery will hold the charge for a very long time, it is hard to estimate it due to the huge size of the battery and the very tiny amount of current draw.
However, my test showed that if I put the battery and run the DC for about an hour, it will give it around 70-100mv of charge... and by recording the discharge of the mod while installed it showed that after almost 300 days battery voltage dropped from 4.18v to about 4v.
this drop is actually due to the battery's own chemistry and nature since once it is fully charged (4.2v ~4.18v) it will lose this kind of voltage in a very short time, after that it rests on a certain voltage. At this stage it is about current draw from the application and battery's internal self discharge.
it loses about 1mv each 7-10 days of idling, so assume one hour gaming is 100mV, then it will be enough for 100 weeks = 1.9 years. >> don't take this as a fact but rather estimation based on actual real life measurement.
so basically, set it up and forget it.
^
all above requires a healthy battery, not necessary a good one since I did all that with a very crappy +5 years old Chinese no-name brand battery. Some batteries are faulty, meaning they don't hold charge at all, no device can accept these. but if you get your battery new and verifies (like it should) then just set it and forget it.
typical battery voltage is 3.7v which is the one you will be getting, but if it is under that then it needs more time to charge... that is all.