Makita BL2120 21V 2.0Ah Replacement Battery Pack
Drop-in replacement battery pack for MT18V2A. Built on a Nuranu proprietary in-house mold for exact OEM latch geometry, the BL2120 uses 18650 cells in a 5S1P configuration to deliver a true 2.0Ah of rated capacity with verified BMS handshake on genuine Makita chargers.
Overview
Drop-in replacement battery pack for MT18V2A. Built on a Nuranu proprietary in-house mold for exact OEM latch geometry, the BL2120 uses 18650 cells in a 5S1P configuration to deliver a true 2.0Ah of rated capacity with verified BMS handshake on genuine Makita chargers.
Manufactured by Dongguan Ruineng New Energy (Nuranu) — a high-tech custom battery factory since 2012 — the BL2120 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
- MT18V2A
- Compatible Makita platform tools
Target Applications
- Industrial Tool Fleets: Sustains peak current for professional Makita cordless tools under continuous-duty jobsite use, delivering the full 2.0Ah rated capacity.
- Rental & Service Fleets: OEM-matched latch and proprietary-mold shell make this an ideal fleet-replacement or private-label pack with identical fit and charger behaviour.
- Distributor Stock Programs: Carton-ready packaging and full UN38.3 / IEC 62133 documentation make this SKU ready for wholesale resale and customs clearance worldwide.
Core Technical Advantages
1. OEM-Matched Fit
Built on a Nuranu-owned injection mold for exact latch geometry, rail fit, and charger seating — the pack drops into host tools and chargers exactly like the original.
2. 18650 5S1P Architecture
A 5S1P cell string delivers the continuous and pulse current Makita brushless motors demand, holding a stable 21V rail without the voltage sag that degrades tool performance under load.
3. Verified BMS Handshake
The onboard BMS is flashed with model-specific firmware so state-of-charge reporting, authentication, and safety lockouts behave identically to a genuine Makita pack — validated on 100% of units at end-of-line.
Product Video
Factory assembly line, BMS testing, and BL2120 demonstration footage. Contact sales for additional product videos.
Technical Specifications
| Feature | Specification |
|---|---|
| Replacement Model | BL2120 |
| Compatible Brand | Makita (牧田) |
| Nominal Voltage | 21V |
| Rated Capacity (real) | 2.0Ah |
| Cell Type | 18650 · 2000mAh |
| Configuration | 5S1P |
| Shell Color | Black |
| Proprietary Mold | Yes (in-house) |
| Net Weight | 0.33 kg |
| Battery Dimensions | 120*75*50mm |
| Inner Box | 135*82*53mm |
| Master Carton | 443*290*183mm |
| Qty per Carton | 30 pcs |
| Carton Net / Gross | 9.9 kg / 10.8 kg |
Packaging & Wholesale Logistics
The BL2120 ships in carton-ready retail packaging engineered for distributor resale and international freight. Each master carton holds 30 units, carton dimensions 443*290*183mm, 10.8 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 BL2120.
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