No, because there is a lithium battery protection board inside, and the MOS tube of the lithium battery protection board cannot withstand the voltage after series connection, so than at the charging voltage. Once connected in series, the MOS will be damaged. , causing the entire battery to fail.
As the picture shows:
According to the specific situation of batteries connected in series, just connect them. The design definition of each card is different and depends on the specific situation. The maximum charge and discharge of the circuit board is determined by the tubes used and associated parameters. Likewise, the three batteries may not be identical.
Note
①Before connecting the cable, make sure that the cable is not inserted into the protection plate;
②Solder line B ( thick blue line) from the protection plate to the negative pole total battery;
③ The cable starts from the thin black wire connected to B-, the second wire (thin red wire) is connected to the positive pole of the first battery string, then the positive pole of each battery string is connected in turn until the end A chain of B+
④ After the cable is connected, do not insert the plug directly into the protective connector; Measure the voltage between two adjacent metal terminals on the back of the plug. If it is a ternary polymer battery, the voltage should be between 2.8~2.8~4.2V, lithium iron battery should be between 2.5~3.65V , the lithium battery. the titanate battery should be between 1.6 and 2.8 V;
⑤ After confirming that the wiring sequence and voltage are correct, insert them into the socket of the protection board again.