Replacement Battery 4AH/5AH/6AH for Bosch Power Tools
16 Years of Battery Manufacturing Excellence Reliable 40V Power for Your Professional Garden Tools The Factory-Direct Advantage Since 2009, GEB has been a leader in high-performance lithium-ion solutions. With 16 years of OEM/ODM battery manufacturing experience, we don’t just assemble
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Inquiry nowProduct Details
Direct Answer: The Replacement Battery 4AH/5AH/6AH for Bosch Power Tools is an industrial-grade OEM/ODM replacement lithium-ion battery pack engineered by GeB Power specifically for commercial equipment fleets and battery distributors. Built on a verified 18V system architecture (5S (5 Series)) and delivering rated capacity of 4AH / 5AH / 6AH (90Wh verified output), this pack delivers dependable continuous discharge (30A – 35A Continuous (55A Peak)) via genuine Tier-1 Grade-A 18650 High-Drain Lithium Cells. It incorporates an advanced hardware BMS with CoolPack-compatible heat dissipation, providing 100% mechanical latching and electrical compatibility with original Bosch BAT609, BAT618, BAT619, BAT610, BAT612, BAT620 tool interfaces.
1. Verified Technical Specification Matrix
| Engineering Specification | Verified Measurement & Factory Standard |
|---|---|
| Battery System Voltage | 18V MAX (18.0V Nominal Operating Voltage) |
| Voltage Working Window | 15V (Discharge Cut-off) to 21V ± 0.05V (Full Charge Cut-off) |
| Rated Capacity & Total Energy | 4AH / 5AH / 6AH | 90Wh Verified Output |
| Cell Chemistry & Architecture | Grade-A 18650 High-Drain Lithium Cells (5S (5 Series)) |
| Continuous Discharge Rating | 30A – 35A Continuous (55A Peak) |
| Internal AC Resistance (1kHz) | ≤ 25 mΩ (Individual cell variance ≤ 1.5 mΩ) |
| Housing Material & Construction | High-impact Flame-retardant ABS+PC (UL 94V-0 Rated), dual slide rails, thermal ventilation channels |
| BMS Electronic Safeguards | Independent cell overcharge (>4.25V), over-discharge (<2.80V), short-circuit recovery, and dual NTC thermal sensors |
| Cycle Life Durability | ≥ 800 – 1000 full cycles maintaining ≥ 80% original capacity retention |
| Operating Ambient Temperature | Charge: 0°C to 45°C | Discharge: -20°C to 60°C | Storage: -10°C to 35°C |
| Compliance & Export Certification | CE, RoHS, UN38.3, MSDS, 1.2m Drop Test Passed, 30% SOC Maritime DG Air/Sea Standard |
2. Compatibility & Equipment Fitment Check
To prevent field incompatibility, each battery casing is precision molded to exact tolerance parameters ensuring tight slide lock without wobble or pin arcing:
- Direct Battery Model Replacement: Replaces Bosch BAT609, BAT618, BAT619, BAT610, BAT612, BAT620 and related commercial battery codes.
- Supported Equipment Fleets: Bosch 18V Professional cordless tools including GSR/GSB 18V drill drivers, GBH 18V rotary hammers, GDX/GDR impact drivers, GWS 18V angle grinders, and GKS circular saws.
- Approved Charging Stations: Bosch AL 1820 CV, AL 1860 CV, GAL 1880 CV, and GAL 18V-40 quick chargers.
- Terminal Contact Integrity: Precision-stamped beryllium copper terminal blades with low-resistance nickel coating to prevent contact burning under 50A+ motor stall currents.
3. First-Party Manufacturing & Quality Control Evidence
Every commercial battery pack leaving GeB Power’s assembly facility is certified through a strict 5-tier testing protocol:
- Three-Axis Cell Sorting: Automated pre-assembly screening selecting cells with delta internal resistance ≤ 1.5mΩ and delta voltage ≤ 3mV.
- High-Conductivity Ultrasonic Spot Welding: 0.2mm pure nickel interconnect plates capable of withstanding severe jobsite drops and motor vibration.
- Hardware BMS Validation: 100% electronic load testing measuring short-circuit cutoff latency (≤ 250 microseconds) and overcurrent thresholds.
- Automated Full-Cycle Aging: Every production batch undergoes automated computerized aging racks with full charge/discharge logging to guarantee true rated Ah capacity.
4. Operating Boundaries & Engineering Fit
To help fleet engineers and tool buyers select the optimal pack, consider the following application criteria:
- Highly Recommended Applications: Commercial mechanical installation, steel framing, electrical rough-in, and heavy-duty drilling requiring authentic Bosch slide docks.
- Application Boundaries: Legacy Bosch 14.4V/24V rod-style clip tools or proprietary Smart ProCORE Bluetooth communication stations.
5. OEM/ODM Customization & B2B Procurement Support
GeB Power supports power tool aftermarket brands, commercial contractors, and hardware distributor networks with factory-direct customization:
- Branding & Housing: Private label silk-screening, custom color molding, laser barcode engraving, and retail packaging.
- Cell Brand Flexibility: Option to configure packs with Samsung, LG, Murata, or Tier-1 Grade-A Chinese high-drain cells to meet target price/performance points.
- Logistics Documentation: Full UN38.3 test summaries, dangerous goods packaging certificates, and MSDS documentation supplied for seamless worldwide shipping.
- Evaluation Samples: Prototyping and testing samples available within 5–7 business days.
6. Frequently Asked Questions (B2B Buyer FAQ)
Q1: Will this battery safely charge on my original factory Bosch chargers?
A: Yes. The onboard BMS circuitry and terminal pinout fully communicate with original factory chargers (including multi-voltage stations), following standard CC/CV temperature-regulated charging curves.
Q2: How does cycle life compare to OEM original packs?
A: By using Tier-1 Grade-A high-drain cells and precision delta-matching, our battery packs deliver over 800-1000 complete charge/discharge cycles at 80% depth of discharge, meeting or exceeding standard aftermarket durability benchmarks.
Q3: Can our company request custom laser branding and private packaging?
A: Absolutely. We provide comprehensive OEM private label services, including custom housing colors, company logo branding, serial number barcoding, and custom bulk cartons for commercial tool distributors.
Request a sample or wholesale quote: Contact our engineering team at info@gebattery.co or submit your specifications directly through our Request a Quote portal.
