Compatible Makita Part Numbers:

BL1021B  BL1041B  BL1016  BL1040B  BL1040  BL1015  BL1020B  197402-0  197390 CXT

Compatible Makita Power Tool Models:

DF031D  DF331  DF0331D  TD110D  JR103D  JR105D  HSS01D  HP332D  DC10SB  
DS032  HP330  HP331  HP331DSMJ  HR140D  HR140DZ  HR140DSMJ  HR166D  HR166DZ

1-Year Warranty

All our JJY-MAK-BL1021B 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 do I 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., ' BL1021B ') 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 JJY-MAK-BL1021B 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.