XTAR 21700 5000mAh Protected USB-C Battery - FLAT TOP - 3.6V Rechargeable Lithium-Ion Battery - 10A

FEATURES:

    ***USB-C Direct Charging -We put the intelligence of a charger directly into the battery.

   -Supports 5V 1.2A fast charging.

   -Smart 3-stage charging algorithm for longer battery life.

   -Auto-activates and begins charging upon plugging in if over-discharged.

   -It’s more than rechargeable. It is self-managed.

   -A full charge via the USB-C cable takes 4.6 hours.

   -Supports charging with 3.6V lithium battery chargers like the XTAR VX4, fully charging in 3 hours.

   ***Standard 21700 Size, No Fit Problems

   -Unlike many other USB-C 21700 batteries are too long to fit flashlights and gear, XTAR’s battery works well with standard battery compartments.

   ***5000mAh & 10A High Performance

   -5000mAh high capacity with up to 10A discharge. Delivers stable power without overheating — consistent performance from start to finish.

   ***800 Cycles — Long Life, Low Waste

   -That means fewer replacements, lower cost in the long run, and less environmental impact.

   ***Excellent Performance in Extreme Temperature

   -Supporting a wide range of -20°C to 60°C, it is perfect for temperature-sensitive equipment such as outdoor weather stations.

   ***Multiple Layers of Protection

   -Built-In explosion-proof valve, designed to prevent leakage, swelling and even rupture under extreme conditions.

   -Equipped with XTAR’s own protection board for consistent performance and safer use.

   ***Balanced Cell for Multi-Battery Devices

   -In devices using 2 or more batteries, imbalance can ruin performance. XTAR carefully tests and selects the cell capacity and internal resistance. Each cell in a batch performs consistently, avoids runtime gaps and uneven drainage. This type of quality control often goes unnoticed — but it makes all the difference.

   ***Made for Flashlights, Ready for More

   -Ideal for EDC/diving flashlights, bike lights, outdoor weather station, and other 21700-powered gear.

SPECIFICATIONS:

   *Model:21700 USB-C Li-ion Battery

   *Capacity:5000mAh

   *Voltage:3.6V

   *Max Discharge Current:10A

   *Charging Voltage:4.2±0.03V

   *Charging Current:2500mA

   *Operating Temperature:-20-60℃

   *Storage Temperature:-20-55℃(Best at 25±5℃)

   *Cycle Life:800+

   *Protected:Yes

   *Positive Terminal:Flat Top

   *Dimensions(mm):φ21.5±0.3 x H75.5±0.5

   *Net Weight:73g

PACKAGE CONTENTS:

   1xXTAR 21700 5000mAh 10A USB-C Lithium Battery