How to replace the battery with a more capacious one in a bluetooth speaker?

Question

Electronics

There is a bluetooth speaker, the battery (li-pol) died a few years later, I decided to replace it with another one with a larger capacity (also li-pol). According to the specs, the old one was at 1500 mAh, I bought a new one at 3000 mAh (fortunately, the place allowed). Actually carried out the replacement, but ran into a problem. Both the old and new batteries are protected from overcharging, overdischarging, but apparently there is a charge limit in the speaker board itself. Those. the new battery is charged up to 1300 mAh and charging is turned off.

Therefore, 2 questions:
1. Is it realistic to win or how does this kind of restriction work.
2. If it is not realistic to change, you need to change the battery to the old capacity, or it is safe to leave it at 3000 mAh, which is not fully charged.

Answer 1

charging is set to voltage and not to capacity.
for li-polymer, the charge termination voltage is 4.2 volts and no matter what the capacity of the element.
a cheap Chinese battery was bought, with crappy chemistry, overpriced Chinese ma * h on the label.
so everything is fine.

Answer 2

If the speaker board itself is set to 1500, then it will not charge anymore ...