This is the latest update of high drain 21700 rechargeable cells from Nitecore.  Designed with a built-in PTC, it can inhibit high current surges to suit multiple devices and flashlights that requires over 15A current. The integrated protection circuitry will prevent short circuits, overcharge and deep discharge.  The NL2150HPR is said to be the equivalent of 500 CR123 batteries with a recharge lifespan of 500 cycles and will serve as a great replacement for those disposable cells.

Features:

• 5000mAh capacity with >15A max continuous discharge
• Built-in USB-C charging port with dual LED charging indicators
• Built-in pressure relief valve
• Microporous barrier for heat dissipation
• Built-in PTC for surge protection
• Nickel-plated stainless steel cathode and anode
• Length: 2.96in (75.2mm)
• Diameter: 0.85in (21.7mm)
• Weight: 2.57oz (73g)