These 18650 rechargeable lithium batteries will allow you to get incredible runtime out of the flashlights that can handle them. Roughly the same size as two CR123 batteries, each 18650 is 3.2V and 1500 mAh. LiFePo4 batteries have a safer chemistry compared to other lithium rechargeables and have a lower chance of issues resulting from overcharging or over discharging. As with all lithium batteries, the proper care needs to be observed. Do not overheat, incinerate, reverse polarity, mix voltages, or do any other potentially dangerous activity with these or any other lithium batteries.
Please note that we cannot ship lithium batteries of any kind to an international address via USPS. International orders containing only lithium batteries will be canceled and refunded. International orders containing lithium batteries and other items will be held while we contact you for further information. Contact us if you would like a quote for DHL or another form of shipping, but be aware that the cost is much higher than via USPS.