2x Ampsplus 18350 1400mAh 3.7V Batteries Flat Top Rechargeable Battery & case
Battery: 18350. 18350 Battery Safety! 18350 3.7V Batteries can leak when misused or when defective! Protection Circuit Board: No. Battery Size: 18.10mm x 35.05mm. DO NOT dispose of in fire or high temperature (more than 60C / 140F).