Product details, 21700 rechargeable li-ion battery is no memory effect, it can be recharged up to 1000 times when fully or partially drained. Fit for
Klarus 21GT-E50 INR 21700 5000mAh 3.6V Protected High-Drain Lithium Ion (Li- ion) Button Top Battery for the E3
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100% Original 50S Li Ion Battery INR 21700 5000mah 25A/45A 3.7V Rechargeable Cell
3.7V 21700 Batteries 5000mAh Rechargeable Li-ion Cell for Flashlight Flat Top Battery
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Wuben ABD4800R Best Micro-USB Charging Rechargeable 21700 Battery for Flashlight - 4800mAh
GTF 21700 3.7V 5000mAh real capacity Li-Ion Rechargeable Battery for Flashlight electronic car flat head batteries drop shipping
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2pcs 26650 5000mAh high capacity lithium-ion battery Lii-50A 3.7V 2665 – BATTERYINT