Upgrade your professional portable lighting with HiMAXBATT’s premium 21700 battery. Our 5000mAh capacity provides 4+ hours of continuous high-lumen output, armored with custom anti-shock engineering for the toughest industrial jobsites.
✦ Engineering Out the "Drop & Dark" Fear in Industrial Lighting
As industrial portable lighting specialists, we understand the harsh reality of job sites. When a technician is working under a vehicle with a dual-sided LED maintenance lamp, or navigating heavy structures with a magnetic floodlight, their gear is bound to take hard falls. Traditional rechargeable lamps built on generic 18650 cells often leave crews in the dark—either because a 2200mAh capacity runs out in less than 90 minutes, or a single 1.5-meter drop shatters the internal weld connections of fragile, unbuffered batteries.
To eliminate these costly project delays, our engineering team developed this ruggedized 21700-1S1P lithium-ion battery pack. By upgrading to premium, high-energy-density ternary chemistry (NMC) 21700 cells, we pack 18.5Wh (3.7V / 5000mAh) of stable energy into a compact cylindrical footprint. More importantly, we introduced a proprietary dual-end shock-absorbing EVA foam system wrapped in a heavy-duty, flame-retardant industrial blue PVC heat-shrink sleeve. This robust structural armor acts as a mechanical suspension, absorbing kinetic impact during drops. We have stress-tested these packs to survive 10 consecutive free-fall drops from 1.5 meters onto solid concrete at any angle—consistently maintaining stable voltage and seamless weld integrity to satisfy GB 31241 and UN38.3 standards.
From a battery design perspective, electrical stability is just as critical as physical armor. High-power, high-lumen handheld LED searchlights generate significant continuous draw, which can induce rapid temperature spikes in standard batteries. To maintain optimal thermal performance, our pack is integrated with a highly precise 1S 5A Hardware BMS (Battery Management System). This protection board monitors cell parameters in real-time, executing hardware cuts if discharge currents exceed 6.0A or if standard overcharge (4.275V) and overdischarge (2.5V) thresholds are crossed, ensuring complete self-recovery once safe parameters resume.
Integrating this power pack into your hardware is incredibly simple. With its standard analog voltage logic, your device’s motherboard can read power levels directly via a basic capacitor voltage divider or an ADC channel—completely eliminating the need for complex, expensive digital communication protocols while fully supporting common 5V/2A (Type-C) fast-charge setups. The pack comes pre-wired with an industry-standard JST-XHR-2P connector (2.54mm pitch) and highly flexible UL1007 22AWG red-black lead wires (80mm), designed to handle high current draw without wire stiffening. Manufactured in our ISO9001 certified facility, this battery pack is fully compliant with IEC 62133-2 standards, giving B2B procurement managers the ultimate peace of mind in global compliance and long-lasting runtime.
Specifications
3.7V 5000mAh 21700 1S1P Li-ion Battery Pack
Battery Type
Rechargeable Ternary Li-ion (NMC)
Cell Specification
21700-1S1P
Nominal Voltage
3.7V
Rated Capacity
5000mAh
Total Energy Content
18.5Wh
Standard Charge
CC/CV
BMS Overcharge Cutoff
4.275V +/- 0.025V
BMS Overdischarge
2.5V +/- 0.05V
BMS Overcurrent
6.0A (with self-recovery)
BMS System Type
Integrated 1S 5A Hardware BMS
Structural Armor
Dual-end EVA + PVC sleeve
Lead Wire & Plug
UL1007 22AWG, JST-XHR-2P
Physical Dimensions
Diameter 22.0mm * Length 73.5mm
Net Weight
Approx. 73g
Certifications
UN38.3 Certified, ISO9001
Frequently Asked Questions
To help you make the most informed decision for your portable lighting projects, here are the key technical queries answered by our engineering team:
Why should we upgrade from 18650 battery packs to your 21700-1S1P 5000mAh configuration for our work lights?
A (English): High-power LEDs (above 1000 lumens) consume immense power. Traditional 18650 cells (typically 2200mAh) only last about 1.5 hours in high-intensity modes. Our single 21700 ternary cell packs a massive 5000mAh (18.5Wh) within a marginally larger footprint, extending continuous runtime to 4 to 5 hours. This eliminates battery anxiety and keeps jobsites running without interruption.
How does the HiMAXBATT pack guarantee solder joint integrity during heavy jobsite impacts?
Industrial lighting undergoes severe physical stress. To absorb drops, we integrate high-elasticity shock-absorbing EVA foam padding at both ends of the cell. The entire pack is wrapped in a rugged, flame-retardant industrial PVC heat-shrink sleeve with terminal glue-sealing. This acts as a mechanical damper, allowing the pack to survive 10 consecutive 1.5-meter concrete drop tests with zero weld fractures or voltage drops.
Can we use our existing Type-C charge controller with this battery pack without digital protocol chips?
Yes, absolutely. This pack is designed with standard analog voltage logic (no digital communication protocol), allowing your device’s mainboard to read real-time voltage and control charging via standard capacitor voltage division or ADC channels. It fully supports cost-effective 5V/2A Type-C fast-charging topologies.
How does the integrated BMS protect the cell when high-intensity LEDs emit constant thermal energy?
Continuous high-current discharge from massive LEDs raises thermal profiles. Our integrated 1S 5A precision BMS monitors current and temperature. It features hardware protection limits for overcharge (4.275V), overdischarge (2.5V), and overcurrent (6.0A) to ensure the cell operating parameters remain in their optimal lifecycle window.
What safety and compliance standards does this battery pack carry?
The battery pack is fully UN38.3 certified and manufactured under strict ISO9001 quality management systems. Furthermore, its raw materials and performance criteria are designed to fully comply with and meet all international safety standard validations, including IEC 62133-2 and GB 31241.
