Compatible Makita Part Numbers

BL4045  BL4025  BL4025-L  DC40RB  191B363  BL4025B 
DC40RA  XGT  A-69923  BL4040  BL4040B  191B36-3
BL4090

Compatible Brand(Makita) Power Tool Models

40V Max XGT TD001G  TW001G  DF001G  HS003G  HS004G  JR001G
GA003G  GA005G  GA004G  AS001G  UC002G  ML001G

1-Year Warranty

All our MAK-BL4090 replacement batteries are engineered to meet or exceed original specifications. We provide a 1-year limited warranty covering any manufacturing defects. If the product fails due to inherent quality issues within the first year, we offer a free one-to-one replacement service (subject to proper installation and standard usage).

FAQs

Q: How to check if this battery is compatible with my Power Tool?

A: First, find out the part number of your old battery or the model name of your power tool (e.g., 'Makita BL4090') and match it with our product compatibility table. Second, please compare the old battery with our product images to make sure their shapes are the same. Lastly, check that the voltage (rating) is the same as the old one.

Q: Do I need to charge the new battery for 12 hours for the first time of use?

A: No. Lithium-ion batteries have no memory effect, so it’s the right way to charge and discharge normally.

Q: How do I properly charge my battery?

A: Please avoid exhausting the battery power and then recharging, because it will cause a lot of damage to your battery. Therefore, you have to charge it when the remaining power is nearly 10-20%. In addition, if your battery has not been used for a long time, please charge it once a month, keep the remaining power at about 40%, and then store it in a dry and cool environment.

Q: How to care for my power tool battery and extend its life?

A: 

1. A complete discharge would damage the life of the battery for power tools.

2. Please keep the power tools as dry and cool as possible.