Notifications
Clear all

Makita BL1860 18V/6A

zabieru
(@zabieru)
Active Member

Hi there,

trying to understand the internal BMS PCB. Attached a picture of the BL1860B.

BL1860B PCB

* Connectors

metallic connectors : V+(18V), AS(following V+ value, 0V if any load/tool), GND

yellow connectors 7pins : GND, NC, DATA1, DATA2, ENABLE, WAKEUP, 5V <-- not sure about the name of signal but from the traces it sounds like this

* PCB

- upper chip is marked "MAK02 122FZ0F 1000", maybe an MCU. Can't find any reference

- down chip is marked "OZ3705SN FONY40JG 2115C2", probably a BSM chip from a chinese manufacturer ( https://www.dianyuan.com/article/33794.html)

- 2 Infineon StrongIRFET IRL7472L1TRPbF close to the MAK02 chip

Does anyone have any more hints about the PCB and the chips on it ?

This topic was modified 6 months ago by zabieru
Quote
Topic starter Posted : 03/06/2022 6:56 am
Share: