GEB 18V 21V Cordless Lawn Mower High-Drain Lithium Battery Pack
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The GEB 18V 21V Cordless Lawn Mower High-Drain Lithium Battery Pack is built for continuous outdoor duty cycles in commercial and residential landscaping equipment. Featuring high-capacity cylindrical cells in a multi-parallel matrix (up to 12.0Ah / 252Wh), this pack delivers a consistent 35A continuous discharge to prevent motor stall in dense, damp grass while maintaining cool internal temperatures through specialized thermal air ducts.
Key Product Facts
| Nominal Voltage / Peak | 18.0V DC Nominal / 21.0V DC Peak |
| Rated Capacity Options | 2.5Ah, 4.0Ah, 5.0Ah, 6.0Ah, 8.0Ah, 10.0Ah, 12.0Ah (@ 0.5C discharge) |
| Cell Form Factor | Grade-A 18650 / 21700 High-Capacity Lithium-ion Cells (5S2P / 5S3P) |
| Continuous / Peak Discharge | 35A Continuous / 70A Peak Surge (≤10s heavy grass load) |
| Thermal Management | Optimized passive cooling air channels with flame-retardant PC+ABS chassis |
| State of Charge Indicator | 4-Stage LED digital fuel gauge with instant button check |
| Standard Rail Interface | Reinforced dual-latch slide-on interface compatible with 18V/21V garden tools |
| Export Compliance | UN38.3, MSDS, CE, RoHS, Drop-tested packaging |
Full Parametric Specifications
| Operating Voltage Range | 15.0V – 21.0V |
| Standard Charge Voltage | 21.0V ± 0.05V CC/CV |
| Recommended Fast Charge | 3.0A to 5.0A (1-2 hour quick turnaround) |
| Cycle Life Expectancy | ≥1000 cycles with ≥80% remaining capacity (0.5C/0.5C at 25°C) |
| Operating Temperatures | Charge: 0°C ~ 45°C | Discharge: -15°C ~ 55°C |
| Protection Electronics | Overcharge cutoff, over-discharge cutoff, dual thermal NTC sensors, overcurrent lockout |
Target Equipment Compatibility
- Cordless Lawn Mowers: Walk-behind rotary mowers, robotic lawn mowers requiring 18V-21V high-capacity packs.
- String Trimmers & Brush Cutters: Cordless weed whackers demanding continuous high-speed RPM.
- Leaf Blowers & Sweepers: Axial fan blowers with sustained 25A-30A continuous electrical draw.
First-Party Manufacturing & Testing Integrity
- Zero-Defect Cell Matching: Automated matching of internal impedance within 2mΩ ensures balanced discharge and prevents premature thermal shutdown.
- Thermal Endurance Testing: Packs undergo 4-hour continuous 30A load testing in thermal chambers to verify thermal dissipation efficiency.
- Impact-Proof Housing: Drop-tested from 1.5 meters onto concrete to verify lock latch integrity and cell insulation.
B2B Procurement & FOB Terms
| FOB Unit Price | $6.99 – $26.99 / piece (Volume tiered by capacity) |
| MOQ | 1 pc sample | 200 pcs bulk production order |
| Customization Options | Silkscreen branding, custom capacity label, custom color shell (black/red/grey) |
| Shipping Logistics | Sea shipping DG container (MSDS certified) or air express sample delivery |
Frequently Asked Questions (FAQ)
Q: How does this pack manage thermal buildup during hot summer mowing?
A: The pack features dedicated internal airflow channels between cell banks and dual NTC thermal sensors that regulate temperature, preventing thermal runaway while maintaining high output.
Q: Can we order custom capacity labels for our retail brand?
A: Yes, GEB provides complete OEM/ODM labeling, barcode printing, and color box packaging for brand distributors.
Looking for Reliable OEM/ODM Replacement Batteries for Your Tool Fleet?
As a professional lithium-ion battery manufacturer with over 16 years of engineering experience, GeB Power (General Electronics Technology Co., Ltd.) provides high-grade, direct-fit replacement battery packs and custom battery solutions for power tool distributors, fleet contractors, and equipment brands worldwide.
- Tier-1 High-Drain Cells: Premium 18650 and 21700 lithium cells for maximum discharge rate and prolonged runtime.
- Intelligent BMS Protection: Multi-layer circuitry preventing overcharge, over-discharge, short circuit, and thermal runaway.
- Global Certifications: Fully certified to CE, UL 2054, UN38.3, RoHS, and MSDS transport standards.
- Flexible MOQ & Fast Prototyping: Customized housing colors, labeling, private labeling (OEM), and fast-turnaround sampling.
Get a factory-direct quote or request evaluation samples today: Send your required voltage, capacity, tool models, and estimated order quantity to our engineering team at info@gebattery.co or submit your inquiry via our Request a Quote page.
