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Bosch Replacement Battery Packs for OEMs & Distributors

4 Production SKUs 18V Drop-in latch compatible Verified BMS handshake UN38.3 / IEC 62133 / CE Private-label ready

Production SKUs

Voltage Platforms

100_/MOQ

Min Order Quantity

25-35d

Production Lead Time

Product Lineup

4 Bosch-Compatible Replacement SKUs

All production-ready configurations covering Bosch's installed base. Click any model to request a sample, full datasheet, or wholesale pricing.

BAT609 18V · 3.0Ah

Replacement model

BAT609

18650 cell 5S2P 3000mAh/cell

Compatible host

Bosch BAT609 / BAT618 / BAT622 platform

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BAT610 18V · 2.0Ah

Replacement model

BAT610

18650 cell 5S1P 2000mAh/cell

Compatible host

Bosch 18V compact tools

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BAT620 18V · 4.0Ah

Replacement model

BAT620

18650 cell 5S2P 2000mAh/cell

Compatible host

Bosch 18V Professional general use

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BAT621 18V · 6.0Ah

Replacement model

BAT621

18650 cell 5S2P 3000mAh/cell

Compatible host

Bosch 18V Professional high-capacity

Request sample & quote →

Quick Reference

All 4 SKUs at a Glance

Side-by-side comparison of every Bosch replacement battery in our catalog. Use this table to quickly match OEM model codes or shortlist for sampling.

Replacement Model	Voltage · Capacity	Cell Type · mAh	Configuration	Compatible Host Platform
BAT609	18V · 3.0Ah	18650 · 3000mAh	5S2P	Bosch BAT609 / BAT618 / BAT622 platform
BAT610	18V · 2.0Ah	18650 · 2000mAh	5S1P	Bosch 18V compact tools
BAT620	18V · 4.0Ah	18650 · 2000mAh	5S2P	Bosch 18V Professional general use
BAT621	18V · 6.0Ah	18650 · 3000mAh	5S2P	Bosch 18V Professional high-capacity

Factory Capabilities

OEM & ODM Manufacturing for Bosch Batteries

Beyond catalog SKUs, we manufacture private-label and fully custom Bosch-compatible battery packs at volume. From your logo to a complete ground-up design — we build the supply chain behind your brand.

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Private-Label Branding

Your logo, your colors, your retail packaging. Branded user manuals in 6 languages. MOQ 500 units per SKU. Full design freedom on pack shell graphics.

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Custom Form Factors

In-house injection molding tooling for proprietary enclosure designs. Sample-to-spec reverse-engineering in 14–21 days. Full mechanical & electrical CAD deliverables.

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Custom BMS Firmware

Programmable BMS chips for custom protection thresholds, balancing algorithms, communication protocols (SMBus / I²C / UART / CAN), and host-device authentication.

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Cell Selection Flexibility

Samsung SDI, LG Chem, Panasonic, Sanyo, BAK — specify your preferred cell brand or let us recommend the optimal cell for your runtime / cost / cycle-life targets.

Quality Assurance

8-Stage Quality Testing Protocol

Every Bosch replacement battery passes an 8-stage inspection and test sequence before it ships. Documented per batch, traceable per serial number.

Stage 01

Incoming Cell Inspection

Every 18650 / 21700 cell batch tested for capacity, internal resistance, and voltage variance against supplier datasheet before entering production. Out-of-spec lots are quarantined and reported back to cell supplier.

100% sample audit

Stage 02

Cell Sorting & Matching

Cells matched by capacity (±20 mAh) and internal resistance (±5 mΩ) before pack assembly. Tight matching ensures balanced discharge across parallel groups and extends total pack cycle life.

±20 mAh tolerance

Stage 03

Spot Welding & Assembly

Automated nickel-strip spot welding with real-time current monitoring. Every weld point pull-tested for tensile strength; nickel strip resistance measured per pack.

2 kgf min pull strength

Stage 04

BMS Programming & QC

BMS flashed with model-specific firmware tuned for host device. Communication handshake verified against OEM chargers — state-of-charge reporting and safety lockouts must function identically to genuine pack.

100% handshake pass

Stage 05

Capacity Verification

Side-by-side discharge test against an original brand pack on identical load profile. Our replacement must deliver equal or greater rated capacity and runtime on the host device.

≥100% rated capacity

Stage 06

Aging Test

48-hour aging at controlled room temperature to stabilize cells and detect early-life failures. Voltage drift continuously monitored — abnormal self-discharge flags pack for engineering review.

48 hr aging cycle

Stage 07

End-of-Line Functional Test

Final EOL station verifies overcharge / over-discharge / short-circuit protections, physical latch fit on actual host device, and visual quality. 100% of packs tested — no statistical sampling on safety.

100% EOL inspection

Stage 08

Compliance Documentation

UN38.3 transport test reports, IEC 62133 safety certifications, MSDS sheets, and CE Declarations of Conformity issued per production batch — shipped with goods for customs clearance worldwide.

UN38.3 + IEC 62133 + CE

For Distributors

Wholesale Order Specifications

Carton-ready packaging, flexible MOQs, and complete shipping documentation. Direct factory pricing — no middlemen, no markup.

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Carton-Ready Packaging

Inner box: 1 pack per blister card with retail-grade printing. Master carton: 24 / 48 / 96 units depending on SKU. Custom packaging design available for private-label orders.

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Global Shipping

FOB Shenzhen / Guangzhou for sea freight. Door-to-door DDP available. Air freight via DHL / FedEx for samples and urgent batches. All shipments include UN38.3 documentation.

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Complete Documentation

UN38.3 test report, IEC 62133 cert, MSDS, CE DoC, packing list, commercial invoice, and certificate of origin — all issued per batch for smooth customs clearance.

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Long-Term Supply Contracts

Annual supply agreements with locked pricing and reserved production capacity. Monthly call-off orders, JIT inventory programs, and consignment stock options for strategic accounts.

Order at a Glance

Catalog MOQ 100 units / SKU

Private-Label MOQ 500 units / SKU

Standard Lead Time 25–35 days

Expedited Lead Time 18–22 days

Payment Terms 30% T/T + 70% B/L

Sample Policy 1–10 units, paid

Warranty 12 months

B2B FAQ

Frequently Asked by Distributors

The questions our wholesale buyers and OEM partners ask most about Bosch replacement battery sourcing.

What is the minimum order quantity (MOQ) for Bosch replacement batteries?

Standard MOQ is 100 units per SKU for our catalog Bosch replacement packs. Sample orders of 1–10 units are available for testing and BMS handshake validation before placing a production order. For private-label or custom-spec runs, MOQ starts at 500 units.

Are these drop-in compatible with original chargers?

Yes. Every Bosch replacement SKU includes a BMS programmed with model-specific firmware tuned to handshake correctly with genuine Bosch chargers. State-of-charge reporting, authentication signals, and safety lockouts function identically to the OEM pack. We validate handshake compatibility on 100% of packs at end-of-line.

Can you provide UN38.3, IEC 62133, CE certifications?

Yes. UN38.3 transport test reports and IEC 62133 safety certifications are issued per production batch as standard. CE Declarations of Conformity, MSDS sheets, and air-shipment safety documentation are bundled with every shipment for customs clearance in EU, US, UK, AU, and JP markets. UL certification is available on request for an additional lead time.

What is the lead time for a 1,000-unit order?

Typical lead time is 25–35 days from PO confirmation for stocked Bosch SKUs, including cell sourcing, pack assembly, full 8-stage testing, and packaging. Lead time may extend to 40–50 days for custom-spec orders or high-volume runs above 5,000 units. Expedited 18–22 day production is available with surcharge.

Can I get private-label / OEM custom branding?

Yes. We offer full private-label service: your logo on the pack, custom color schemes, branded retail packaging, and custom manuals in EN / DE / FR / ES / IT / JA. Minimum private-label run is 500 units per SKU. Tooling for fully custom enclosure form factors is also available (NRE applies).

What cell chemistry do you use?

All Bosch replacement packs use Grade-A lithium-ion cells from tier-1 manufacturers (Samsung SDI, LG Chem, Panasonic / Sanyo, or BAK depending on form factor and order spec). Customers may specify preferred cell brand at order placement. We never use B-grade or recycled cells.

Do you ship by air or sea?

Both. Standard shipments use sea freight to consolidated ports (FOB Shenzhen / Guangzhou). Air freight via DHL / FedEx / UPS is available for sample orders and urgent batches. All packs are UN38.3 certified and ship as Class 9 dangerous goods with proper documentation.

How are the cells matched in the Bosch battery packs?

Cells are matched by capacity (±20 mAh) and internal resistance (±5 mΩ) before pack assembly. Tight matching is critical for parallel-cell configurations because it ensures balanced discharge across all parallel groups, prevents premature cell aging, and extends total pack cycle life — typically 30–40% longer than packs assembled from unmatched cells.