These are the newest version of the KFALO IMR Safe chemistry LiMN 3.7V rechargeable batteries in an 40A 18650 2800MAH size. These cells can handle high amperage and are safe to use in series / multi-cell applications. Can be charged with any LiIon battery charger with 4.2V output. Shaped Core technology applied. Specifications Brand: KFALO Capacity:2800mAh Nominal Voltage : 3.7V Max. Continuous Discharge Current : 40A Dimensions : 65*18.24MM (+/-0.05)mm Operating Discharge Temperature : -10 to 60 Degrees Celsius Standard Charge : CC/CV Cycle Life : > 500 cycles Weight : 48g Total Piece Count: 2 Caution -Do not over-discharge/overcharge, if allowed to drop past2.5 volts, chargers will no longer be able to charge these batteries -Recharge empty batteries (resting voltage ~3.6V) as soon as possible -Do not short circuit (will release tremendous current)-Do not dispose of in fire -Leaving LiIon batteries in discharged state will incur irreversible damage (capacity / cycle loss) Disclaimer Battery has inherent risk of flame/explosion or other damages. Please handle properly. User is full responsible for any resulted damages. Notes All For Best Store: Frist-Level KFALO & Facolo marketing pertner in USA Fast ship out in One business day
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