1. For batteries simply connected in parallel, there is no need to use a combined protection board. Just connect a 3.6V protection board which can be used with high current (because the conventional protection board limits overcurrent, while being multiple). parallel batteries require high current. So please pay attention to it)
2. If a battery in the parallel line is broken, there will be no safety hazard. Battery current and capacity will be reduced. as a result, and it will not be broken, let alone There will be safety problems, and the faulty battery you mentioned will be charged by other batteries and will only appear in a series circuit. The voltage at both ends of each parallel battery is the same. . Where does the difference in potential come from and how to bill it?
3. If you want to obtain current and voltageOn high voltages (above 4.2 V), you should choose a protection board according to the voltage. In fact, there is a very simple method of identification: just look. at the level of the tinned studs. If it is a purely parallel connection, there are only four B+\B-, P+\P-, and for each additional battery pad of more than 3 strings connected in series, there will be one Additional battery pad with printed symbols. above: V1/V2/V3...
4. For your drums, it is recommended to add a protection board once after 16 strings, then do 20 strings (no need to Add a map) .