Makita BL4040 40V 3.0Ah Replacement Battery for XGT Cordless Tools
Drop-in replacement battery pack for the Makita 40V XGT cordless platform. Built on a Nuranu proprietary in-house mold for exact OEM latch geometry, the BL4040 uses high-drain 21700 cells in a 10S1P configuration to deliver a true 3.0Ah of rated capacity with verified BMS handshake on genuine Makita XGT chargers.
Overview
Drop-in replacement battery pack for the Makita 40V XGT cordless platform. Built on a Nuranu proprietary in-house mold for exact OEM latch geometry, the BL4040 uses high-drain 21700 cells in a 10S1P configuration to deliver a true 3.0Ah of rated capacity with verified BMS handshake on genuine Makita XGT chargers.
Manufactured by Dongguan Ruineng New Energy (Nuranu) — a high-tech custom battery factory since 2012 — the BL4040 is produced under a fully automated assembly line with 100% aging and end-of-line testing. It is engineered for OEM clients, hardware distributors, and private-label brands that need OEM-equivalent fit and performance at factory-direct pricing.
Compatible Host Tools
- Makita 40V XGT cordless drills & drivers
- XGT angle grinders & rotary hammers
- XGT circular & reciprocating saws
- XGT outdoor power equipment (blowers, trimmers)
Target Applications
- Industrial Tool Fleets: High-drain 21700 cells sustain peak current for professional XGT drills, grinders, and rotary hammers under continuous-duty jobsite use.
- Outdoor Power Equipment: Stable 40V rail for XGT-platform blowers, hedge trimmers, and chainsaws used by landscaping and grounds-maintenance crews.
- Rental & Service Fleets: Proprietary-mold shell and OEM-matched latch make this an ideal private-label or fleet-replacement pack with identical fit and charger behaviour.
Core Technical Advantages
1. Proprietary In-House Mold
The BL4040 shell is produced on a Nuranu-owned injection mold, giving exact OEM latch geometry, rail fit, and charger seating — critical for private-label programs where appearance and fit must match the original XGT pack.
2. High-Drain 21700 Architecture
A 10S1P string of 21700 cells delivers the high continuous and pulse current that 40V XGT brushless motors demand, without the voltage sag that degrades tool performance under load.
3. Verified BMS Handshake
The onboard BMS is flashed with XGT-specific firmware so state-of-charge reporting, authentication, and safety lockouts behave identically to a genuine Makita pack on OEM chargers — validated on 100% of units at end-of-line.
Product Video
Factory assembly line, BMS testing, and BL4040 demonstration footage. Contact sales for additional product videos.
Technical Specifications
| Feature | Specification |
|---|---|
| Replacement Model | BL4040 |
| Compatible Brand | Makita (牧田) |
| Nominal Voltage | 40V |
| Rated Capacity (real) | 3.0Ah |
| Cell Type | 21700 · 3000mAh |
| Configuration | 10S1P |
| Shell Color | Black + Green |
| Proprietary Mold | Yes (in-house) |
| Net Weight | 0.89 kg |
| Battery Dimensions | Confirmed at order |
| Inner Box | 155*86*78mm |
| Master Carton | 460*327*175mm |
| Qty per Carton | 20 pcs |
| Carton Net / Gross | 17.8 kg / 18.4 kg |
Packaging & Wholesale Logistics
The BL4040 ships in carton-ready retail packaging engineered for distributor resale and international freight. Each master carton holds 20 units, carton dimensions 460*327*175mm, 18.4 kg gross. Every batch ships with UN38.3 transport test report, IEC 62133 safety certificate, MSDS, and CE Declaration of Conformity for smooth customs clearance in EU, US, UK, AU, and JP markets.
- MOQ
- 100 units (catalog) · 500 units (private label)
- Lead Time
- 25–35 days standard · 18–22 days expedited
- Payment
- 30% T/T deposit + 70% against B/L
- Warranty
- 12 months
Frequently Asked by Distributors
Need a Custom Quote or Technical Details?
Our engineering team is ready to discuss specifications, certification, MOQ, and OEM / private-label customization for the BL4040.
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