Protected 21700 batteries were designed to be a larger and higher capacity replacement for 18650 batteries, especially in LED flashlights, it has already been a trend. The highest capacity of 21700 batteries is 5000mAh.
XTAR 21700 batteries can be recharged over 500 times, cost-effective and eco-friendly.
The length of these protected 21700 cells is around 74.5mm. They have built-in protection circuits to avoid over-charge, over-discharge, and short circuits.
Features: • 3.6V protected 21700 battery
• Button top
• Constant discharging current 10A
• Cell - INR21700-50E
• Low internal resistance, high Energy Efficiency
• Over-charge, over-discharge, short circuit protection
• Impact-resistant, eco-friendly
Due to most of the chargers on the market only supporting 21700 cells less than 70mm, we recommend XTAR chargers tocharge protected 21700 batteries.