The Samsung INR18650-29E battery is a rechargeable lithium-ionic cell with a capacity of 2600mAh, designed to offer a balance between energy density and reliability. Widely used in electronic devices such as laptop batteries, high power torches and battery packs for various instruments, it stands out for its stable chemistry. One aspect to consider is its 2.75 A continuous discharge current limit, which makes it less suitable for applications requiring high instant power delivery. It is a "flat top" battery, and like all unprotected cells, requires careful management and use of protection circuits to prevent overheating, overheating and excessive discharge. Main technical specifications Rated capacity: 2600 mAh (2.6 Ah) Rated voltage: 3.7 V Max discharge current: 2.75 A Chemistry: Lithium Ions (Li-ion) Size: 18 mm (diameter) x 65 mm (length) Size: 18650 Max charge voltage: 4.2 V Charging cycles: Up to 500 cycles (depending on use)