Ampace JP50 5000mah 21700 Battery
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The Ampace JP50 21700 Battery is a high-performance lithium-ion rechargeable power cell designed for extreme high-drain applications. With a strong 5000mAh capacity and up to 60A maximum continuous discharge capability, the JP50 delivers exceptional power output, low voltage sag, and long-lasting performance for demanding energy systems.
This cell is ideal for professional battery packs, power tools, EV applications, and other high-current electronics when used with proper safety protections.
Key Features
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High Capacity: 5000mAh for extended runtime
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Extreme Discharge Capability: Up to 60A continuous output (with temperature management)
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Low Internal Resistance: Reduced voltage sag under heavy load
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Lithium-Ion Chemistry: Stable, efficient, and reliable power delivery
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Rechargeable & Durable: Designed for repeated charge cycles
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21700 Form Factor: Higher capacity and endurance than standard 18650 cells
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Flat-Top, Unprotected Cell: Intended for use in protected battery packs and engineered systems
Specifications
| Specification | Details |
|---|---|
| Brand | Ampace |
| Model | JP50 (JP50P1) |
| Battery Type | 21700 |
| Capacity | 5000mAh (Typical) / 4900mAh (Minimum) |
| Nominal Voltage | 3.58V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.5V |
| Max Continuous Discharge | 40A (no 80°C cutoff) / 60A (with 80°C cutoff) |
| Max Pulse Discharge | 180A (5s @ 25±2°C) |
| Standard Charge Rate | 0.5C (2.5A) |
| Rechargeable | Yes |
| Protected | No (Unprotected Cell) |
| Battery Top | Flat Top |
| Initial Internal Resistance | ≤ 4 mΩ (AC 1kHz) |
| Operating Temperature | Charge: -10°C to 60°C / Discharge: -20°C to 80°C |
| Cycle Life | Up to 600 cycles (≥60% capacity retention) |
| Diameter | ≤ 21.35mm |
| Length | ≤ 70.45mm |
| Weight | ≤ 72g |
Applications
The Ampace JP50 is suitable for high-drain and professional-grade uses such as:
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Electric Vehicles (EVs) & E-Bikes
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High-Performance Battery Packs (with proper BMS)
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Power Tools and Industrial Equipment
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RC Vehicles and Drones
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High-Output Flashlights
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Robotics and High-Current Electronics
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Energy Storage Systems
SHIPPING
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.
For some flashlights, there's a pure battery inside(phone charging),If We can not ship your packages via USPS or DHL,we'll ship your package in another way.
Note:
When you place an order for just the batteries, for easy shipping, faster and safe delivery, the batteries are placed in the flashlights.
If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( support@flashlightgo.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.
Option 1.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.
Option 2.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
Option 3.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
Learn more,Please click on Here.
To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.
Return:
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.
Discount products:
No product return for discount products
Gifts products:
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.
Exchange:
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to info@flashlightgo.com.
Warranty
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty
Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.
Learn more,Please click here.

