— 21700 High Power
HALF THE CAPACITY, DOUBLE THE PUNCH
5000mAh at 3C continuous but 40A pulse — eight times its nominal current in short bursts.
— Where it works
WHAT THIS CELL IS GOOD FOR
Each scene states the case for this cell and, just as plainly, the case against it. Knowing which cell not to buy is the point.
Torque-critical power tools
An 8C pulse rating on a 5000mAh cell gives high-torque tools the current spike they need at startup without dropping to a smaller format.
Where it does not fit
Continuous discharge is only 3C. Despite the impressive pulse figure this is not a high-current continuous cell — keep the sustained load well below the burst rating.
Packs with intermittent heavy loads
Equipment that idles and then spikes — pumps, winches, impact tools — is the natural home for a cell with a wide gap between its continuous and pulse limits.
Where it does not fit
Do not size refrigeration or continuous-duty loads against the pulse number. If the load never rests, the 40T is the honest choice.
Keeping capacity while adding headroom
You get the same watt-hours as the 50D with a much higher burst ceiling, so a pack can gain peak capability without losing run time.
Where it does not fit
The 300–800 cycle window sits at the lower end. Peak current is paid for in longevity, as it is across this whole family.
— The numbers that matter
INR21700-50P · 5000mAh
Capacity
Energy stored per cell. Multiplied across the pack, this is your run time.
Standard discharge
The current this cell can hold continuously. Match it to your load before anything else.
Pulse discharge
A short burst — motor start, takeoff, inrush. Not a sustained figure.
Cycle life
Charge/discharge cycles before capacity falls to the end-of-life threshold, at gentle duty.
Remaining ratings
- Nominal voltage
- 3.6V
- Max charge
- 4.2V
- Charge current
- 5A (1C)
- Energy
- 18Wh
- Energy density
- 250 Wh/kg
- Weight
- 70 ± 1g
Figures reflect NCM 21700 · High Power manufacturer specifications. Duty cycle, thermal management, and pack design all move the real numbers — confirm your intended load with Monachi before committing to a target.
— Compare the family
CLOSE CALLS IN 21700 HIGH POWER
— Order this cell
INR21700-50P
5000mAh · NCM 21700 · High Power
Add this cell to your cart, or send the selection straight to our sales team on Telegram. Prices shown are indicative starting prices — final B2B pricing, availability, and terms are confirmed by Monachi.
Indicative pricing (USD)
Not a final offer. Freight, duties, and payment terms are quoted per order — confirm with Monachi before you plan against these numbers.
3-month warranty on every cell. Defective cells are replaced.