Charging suddenly stops. New charger, new battery.

Hello. My problem started a few months ago.
The capacity of my battery went down to 60%
Besides, the process of battery charging started to stop suddenly at random moments.

I bought a new battery thinking that it will resolve my problem.
AND
new battery lasts for two hours however the problem of stopping of charging is still present.

I have to connect/disconnect my charger several times in order to full charge the battery.

Is there some module in my gateway 7805u damaged?

As I said. Charger and battery are NEW.

 

You may need to reset the battery. This is usually accomplished by running to 0% charge where the system is shut down by lack of battery. this sometime may get to 0 and then take a while before the battery give in. Then you get to recharge again.

 

Another possibility may be that the new battery was no good. Did you contact the company you bought it from? Maybe they have a guarantee and will replace it.

 

Can it be connected with the CMOS battery?

 

No, that is extremely unlikely.

 

Any battery at this point is most likely old stock. Meaning limited life usually.

 

I bought a new battery and the situation got better. The capacity of new bat gives me about 90 minutes of work instead of 30 as it was with the previous unit. However there are still problems with charging. FOr example when the level of energy is 90%, charging suddenyl stops. I cannot explain this phenomena.

 

Check the bios menus for a ' battery conservation' option or one of the system-specific drivers for the same. This sounds like a normal battery cap, which helps to extend the life of Li-Ion cells; full charge means high-voltage, which results in increased wear:



For systems that have this option you'd use the 80-90% charge option when stationary and whenever a partial charge is sufficient. For an extended period away from a socket you'd set it back to 100% in order to get the maximum possible from the battery.

It is also possible one or several of the cells are not up to par. The design seems to be 4-in-series, so if only one of those four cannot charge to 100% then neither can the rest. In this scenario the battery firmware has yet to become aware of this by re-calibration. After doing so it will adjust the full charge level to 'the new max' and you'll see it charge to 100% again, even though that will be the same mAh's and time-on-battery you currently have at 90%.

To force this adjustment you can let it go down to 5-10% or so, restart, go into the bios menu and let it drain completely. This way no OS or driver-set reserve levels will get in the way and the only thing stopping the drain is the low voltage cut-off set by the battery itself. Usually you cannot start it right away after this by merely plugging in the adapter; it often needs some time to trickle charge the first mAh's it needs before it reaches the pre-set minimum capacity.