I have a similar mosfet problem on a bda350 right angle drill but the mosfet is too destroyed to read the part number. Do you know the part number for the bda350? Thanks.
My friend gave me the same drill that makita refused to fix. It drains the battery quickly causing it to heat up (that's how he described the fault) so I will be trying to investigate that. Any early thoughts on this issue? I haven't opened it yet but maybe something is shorted causing the battery to OC and the BMS cuts it out?
@powertoolsrepair I have ordered a replacement switch (after manually powering the motor and confirming it worked) but I still can't fix the drill. I am suspecting that somehow the voltage at the gate of the MOSFET is not enough, only 0.96V. Can you measure the voltage of the yellow cable of the mosfet and the negative of the battery when you press the switch and tell me what value you get please?
I have a similar mosfet problem on a bda350 right angle drill but the mosfet is too destroyed to read the part number. Do you know the part number for the bda350? Thanks.
Sorry,but don't know what mosfet is used in BDA350
@@powertoolsrepair For any others that get here, it appears to be something in the Toshiba 2SK series. I'll put an IRF1405 in it and see what happens.
Tremendous job
Thank you
My friend gave me the same drill that makita refused to fix. It drains the battery quickly causing it to heat up (that's how he described the fault) so I will be trying to investigate that. Any early thoughts on this issue? I haven't opened it yet but maybe something is shorted causing the battery to OC and the BMS cuts it out?
It will be motor or switch faulty
@@powertoolsrepair i will check and report back, share the knowledge
@powertoolsrepair I have ordered a replacement switch (after manually powering the motor and confirming it worked) but I still can't fix the drill. I am suspecting that somehow the voltage at the gate of the MOSFET is not enough, only 0.96V. Can you measure the voltage of the yellow cable of the mosfet and the negative of the battery when you press the switch and tell me what value you get please?
What Mofset did you use part number
I think it was IRFP3206PBF
@@powertoolsrepairis there much difference between the mosfets
@craigr306 need to check characteristics if you want to replace it with other model
@@craigr306 IRFP4368 is superior
On my faulty brushed Makita DHP458 from 2016 is a IRFP3006. My problem is instantly maximum speed even with the gentle pressing on the trigger.