2 Pack ShockLi 3 7v 3100mAHh Rechargeable Flashlight Battery Flat Top 20A Same Size as 30Q HG2 VTC6 Ideal for 150W Device

18350 specifications Capacity: 1150mAh Voltage: 3.7V Discharge Cut-off voltage: 2.75V Standard Charge: 0.3 A~ 0.8A (Recommend 0.5A~ 0.7A) /4.2V Maximum charge current: 0.8A Continuous Discharge Current: 10A MAX Discharge Current: 15A Positive: Flat Top(unprotected) Size: Diameter is 0.71 inch (18 mm), Length is 1.38 inch (35 mm) Cycle Life: capacity?70% after 500 cycles Charging Time: Standard charge(0.5A) -2.5 hours Customer Instructions 1) Battery Test Review in the budgetlightforum - http://budgetlightforum.com/node/62856, This battery has good feedback 2)Please charge fully to 4.2V before first use, Come with 50% charge for transportation Safety Rules common Question & Answer 1. Are these good for LED flashlight? ?Answer: YES, ONLY for 3.7V flashlight, Note - Flat top battery, Does not make contact if used end to end in series for flashlight. 2. What kind of charger do these require? ?Answer: Recommended high-quality 3.7V battery Li-ion charger, Like Nitecore , Charging current can not exceed 0.8A. 3. Do these come fully charged? ?Answer: NO, Come with 50% charge on them (for shipping purposes). 4. Is it CE, UL, ROHS certified? ?Answer: CE , UL, and ROHS certified, tested by manufacturer. Why choose us IMR/Li-ion battery specialist----Shenzhen ShockLi Technology Co.,Ltd is growing batteries manufacturing, We are the most professional batteries with excellent quality control which earn us customers all over the world.