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BL4020 Replacement Battery

40V2000mAhLi-ion

Compatible with 5 devices

Where to Buy

Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Last checked Jul 16, 2026.

BL4020

15 listings
Aeboren BL4040 4.0Ah Replacement for 40V Battery MTL1810G BL4025 BL4025B BL4020
$33.30
New
ebay
(5-Pack) 3.7V 890mAh BL-5B Rechargeable Battery Replacement for 3220 3230 507...
$40.19
New
ebay
NEW FOR Makita BL4050 MTL1810G 36V(40V Max) 4000mAh Li-ion
$41.89
New
ebay
40 Volt 6.0Ah Battery For Makita 40V XGT Battery BL4025 BL4040 BL4050 With LED
$57.99
New
ebay
2X 40Volt 4Ah Battery for Makita XGT Battery BL4040 BL4020 BL4025 BL4050 BL4060
$81.78
New
ebay
2X 40Volt 4Ah Battery for Makita XGT Battery BL4040 BL4020 BL4025 BL4050 BL4060
$81.78
New
ebay
Battery for Makita BL4025 XGT 40V Lithium-Ion BL4060 Cordless Battery
$81.78
New
ebay
Battery for Makita BL4025 XGT 40V Lithium-Ion BL4060 Cordless Battery
$81.78
New
ebay
2x 4.0Ah Battery for Makita 40V XGT Battery BL4040 BL4020 BL4025 BL4050 BL4060
$81.78
New
ebay
Twin-pack 40V 40Volt 4Ah Battery for XGT BL4040 BL4020 BL4025 BL4050 BL4060
$81.89
New
ebay
2 PACK 6.0Ah 40Volt For Makita 40V Battery Lithium-Ion XGT BL4025 BL4050 LED
$109.99
New
ebay
1-2X 40V 6.0Ah Battery for Makita 40V BL4040 BL4050 Replacement Battery Cordless
$109.99
New
ebay
1/2 PACK 40Volt 6.0Ah Battery For Makita 40V Battery XGT BL4025 BL4050 W/ LED
$109.99
New
ebay
3pcs 4.0Ah Lithium Battery for 40V BL4040 191B26-6 BL4025 BL4050 BL4050F
$121.89
New
ebay
Lithium-ion Battery Rpl. for Makita 40V 4.2Ah Real Capacity for BL4020/25/2
$128.00
New
ebay
Amazon listings coming soon

This Battery Fits 5 Devices

Makita

40V MAX XGT Brushless Grinder

Exact Match

Makita

40V MAX XGT Brushless Hammer Drill

Exact Match

Makita

40V MAX XGT 7-1/4 in. Circular Saw

Exact Match

Makita

40V MAX XGT Brushless Impact Driver

Exact Match

Makita

40V MAX XGT Brushless Rotary Hammer

Exact Match

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