dnmun
1 PW
my package finally arrived. 5 lipo BMSs and one balancing board. the D131 was $58 each and the D126 is $19.
henry decided to send me the D131A balancing board so i will have something to use for reference to diagnose problems on the D131 BMS when they arise.
the D126 has FB4310 mosfets from international rectifier.but they only rate the discharge through the 3 output mosfets at 15A. they should handle 150A without too much trouble. i am gonna hack the shunt with some 4 milli ohm shunt resistors to see if am able to increase the cutout current to about 70A.
i am gonna order some surface mount resistors, i think it will be either 68 ohms or 100 ohms, to the pcb on the big flats left on the underside and increase the shunt balancing current by 2X to 84mA with the 100R, or 104mA with the 68 ohm SMT 2512 resistors.
henry decided to send me the D131A balancing board so i will have something to use for reference to diagnose problems on the D131 BMS when they arise.
the D126 has FB4310 mosfets from international rectifier.but they only rate the discharge through the 3 output mosfets at 15A. they should handle 150A without too much trouble. i am gonna hack the shunt with some 4 milli ohm shunt resistors to see if am able to increase the cutout current to about 70A.
i am gonna order some surface mount resistors, i think it will be either 68 ohms or 100 ohms, to the pcb on the big flats left on the underside and increase the shunt balancing current by 2X to 84mA with the 100R, or 104mA with the 68 ohm SMT 2512 resistors.