Bosch BAT620 18V 4.0Ah Lithium-Ion Replacement Battery
Drop-in replacement battery pack for general-purpose Bosch 18V Professional tools. The Bosch BAT620 18V 4.0Ah lithium-ion battery uses a 5S2P string of 18650 cells for a true 4.0Ah of rated capacity, with full protection circuitry and verified BMS handshake on genuine Bosch chargers. Available as single packs and BAT620-2PK 2-pack configurations — a drop-in Bosch 18V power tool battery replacement.
Overview
Drop-in replacement battery pack for general-purpose Bosch 18V Professional tools. The Bosch BAT620 18V 4.0Ah lithium-ion battery uses a 5S2P string of 18650 cells for a true 4.0Ah of rated capacity, with full protection circuitry and verified BMS handshake on genuine Bosch chargers. Available as single packs and BAT620-2PK 2-pack configurations — a drop-in Bosch 18V power tool battery replacement.
Manufactured by Dongguan Ruineng New Energy (Nuranu) — a high-tech custom battery factory since 2012 — the BAT620 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
- Bosch 18V Professional drills, drivers & saws
- 18V grinders and rotary tools
- BAT609 / BAT618 / BAT620 compatible tools
Target Applications
- General-Purpose Tool Fleets: The 4.0Ah BAT620 balances runtime and weight for all-day use across the Bosch 18V Professional range.
- Distributors & Importers: A versatile mid-capacity pack that covers the broadest slice of the Bosch 18V installed base.
- Private-Label Brands: Sourced with your branding and carton-ready packaging.
Core Technical Advantages
1. Balanced 4.0Ah Capacity
Mid-capacity sweet spot — more runtime than compact packs, lighter than 6.0Ah high-capacity packs.
2. Full Protection 5S2P Architecture
Grade-A 18650 cells with comprehensive BMS protection for sustained discharge.
3. Verified Charger Handshake
BMS handshakes correctly with genuine Bosch chargers; behaves identically to the OEM pack.
Product Video
Factory assembly line, BMS testing, and BAT620 demonstration footage. Contact sales for additional product videos.
Technical Specifications
| Feature | Specification |
|---|---|
| Replacement Model | BAT620 |
| Compatible Brand | Bosch |
| Nominal Voltage | 18V |
| Rated Capacity (real) | 4.0Ah |
| Cell Type | 18650 · 2000mAh |
| Configuration | 5S2P |
| Shell Color | Black + Red |
| Proprietary Mold | No (standard form factor) |
| Net Weight | Confirmed at order |
| Battery Dimensions | Confirmed at order |
| Inner Box | Confirmed at order |
| Master Carton | Confirmed at order |
| Qty per Carton | Confirmed at order |
| Carton Net / Gross | Confirmed at order |
Packaging & Wholesale Logistics
The BAT620 ships in carton-ready retail packaging engineered for distributor resale and international freight. 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 BAT620.
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