Makita 18V battery unlock device - OBI - Free 3D Print Model

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Hobby & DIY>Electronics

IP Report

Print Profile(4)

All

X1 Carbon

P1P

P1S

A1 mini

X1E

H2D Pro

H2D

H2S

H2C

P2S

X2D

A2L

0.2mm layer, 2 walls, 15% infill

Designer

44 min

1 plate

5.0(71)

Makita Lid, AMS , 0.2mm layer, 2 walls, 15% infill

17 min

1 plate

5.0(8)

OBI Case Perfect Support (PLA-PETG)

1 h

1 plate

5.0(8)

Makita Lid, NO AMS, 0.2mm layer, 2 walls, 15% infill

12 min

1 plate

3.0(1)

Open in Bambu Studio

Boost

708

1827

124

3.6 k

1.3 k

Released

Description

I designed a simple enclosure that fits an Arduino Nano along with the additional components required to build the OBI (Open Battery Information) device. This device lets you connect to original Makita 18V cordless tool batteries, read their data, and clear error codes.

🛠️Used parts:

- Arduino Nano: Link;

- Makita charger connector: Link;

- Spade terminals: Link;

- 4,7k ohms 0.25W resistors: Link.

Here is full DIY build video:

open battery information

Comment & Rating (124)

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.