Ampace JP50P1 21700 5000mAh High-Power Lithium-Ion Cell

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Overview

The Ampace JP50P1 is a 21700 cylindrical lithium-ion cell built for high-drain applications. With a nominal capacity of 5000mAh and a maximum continuous discharge current of 40A, it balances energy density and power output for demanding battery packs.

This cell is designed for B2B customers — battery pack assemblers, OEMs, and system integrators — who need a reliable, certified 21700 cell with consistent performance.

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Key Selling Points

High continuous discharge
40A continuous discharge without triggering the 80°C temperature cut-off. With temperature protection enabled, it can handle up to 60A. Pulse discharge reaches 180A for 5 seconds.

Solid energy capacity
5000mAh nominal, 4900mAh minimum at 0.2C discharge. Suitable for packs that need both runtime and power.

Low internal resistance
≤4mΩ (AC 1KHz at shipment voltage). Lower resistance means less heat generation and better efficiency under load.

Wide operating temperature range
Charge: -10°C to 60°C. Discharge: -20°C to 80°C. Works in cold outdoor equipment and hot-running power tools.

Long cycle life
≥60% capacity retention after 600 cycles at 25°C with 15A charge / 30A discharge. Designed for daily rechargeable use.

Certified for global markets
Compliant with UN38.3, IEC62133-2, IEC62619, UL1642, GB31241, BIS, BSMI, PSE, RoHS, and REACH. See certification table below.

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Performance Highlights

Temperature performance: At -20°C, the cell retains approximately 85% of its 25°C capacity at 30A discharge. At 45°C, it retains about 95%.

Rate capability: At 30A discharge, relative capacity is about 92% compared to 1A discharge. This means the cell holds up well under high current loads.

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Applications

• Power tools — drills, saws, grinders, impact drivers

• Outdoor power equipment — leaf blowers, trimmers, chainsaws

• E-bikes and e-scooters — high-drain propulsion packs

• Vacuum cleaners — cordless stick and handheld models

• Energy storage systems — portable power stations, UPS

• Electric mobility devices — self-balancing scooters, skateboards

The 21700 form factor is widely used in these segments, and the JP50P1 is a drop-in option for pack designs already using 21700 cells.

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Safety and Compliance

The cell passes mechanical abuse tests (drop, vibration, shock) and electrical abuse tests (forced discharge, external short) without fire or explosion.

Protection requirements for pack designers:

• Overcharge protection

• Over-discharge protection (cut-off below 2.5V)

• Over-current protection

• Over-temperature protection

• Short circuit protection

Ampace recommends a pre-charge function for packs that may be deeply discharged. Full design guidelines are available in the specification document.

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Certifications

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Warranty

12 months from the manufacturing date. Storage conditions: 0°C–25°C for up to 12 months, 0°C–45°C for up to 3 months, 0°C–60°C for up to 1 month. Humidity ≤75% RH.

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Packing and Shipping

• Sea/land transport: 130 cells per carton, 380mm × 323mm × 85mm

• Air transport: 130 cells per inner box, 2 inner boxes per UN carton, 404mm × 344mm × 205mm

• Cells ship at 3.40V–3.55V

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Why Buy the JP50P1?

• Proven 21700 platform with 5000mAh capacity

• 40A continuous discharge for high-power tools and equipment

• Low impedance for cooler operation

• Wide temperature range for outdoor and industrial use

• Global certifications reduce your compliance workload

• 12-month warranty and full technical documentation

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Request a Quote

Interested in the Ampace JP50P1 21700 cell for your next battery pack project?

Contact us for pricing, samples, and technical support.

We supply in volume to battery pack manufacturers, OEMs, and distributors worldwide. Tell us your target quantity, destination port — we’ll respond with a quote and lead time.

👉 Request Wholesale Pricing
🌐 Store Website: [www.alibababecell.com]