— 18650 High Energy
THE LIGHTEST WAY TO CARRY A CHARGE
3500mAh in an 18650 at 250 Wh/kg. Maximum run time in the smallest cell format Monachi stocks.
— 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.
Weight-constrained portable gear
At 250 Wh/kg this carries more charge per gram than any other 18650 here. Where the device is worn or carried, that density is worth more than peak current.
Where it does not fit
A 3C continuous rating is the lowest in the 18650 line. This cell will not feed a hard-driving motor — pick the 25D or 42D for that.
Long, gentle duty cycles
Running well inside the current ceiling at 500–1000 cycles is the least stressful way to use an 18650, and it is how this cell is meant to be used.
Where it does not fit
Low current is the precondition, not an option. Ask this cell for high current and you lose both usable capacity and the cycle life that made it attractive.
Sensor and standby packs
Low, steady loads held for months are where energy density converts directly into time between charges.
Where it does not fit
There is a 17.5A pulse ceiling, so no inrush tolerance. Any load with a hard start needs a different cell in the pack.
— The numbers that matter
INR18650-35E · 3500mAh
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
- 1.75A (0.5C)
- Energy
- 12.6Wh
- Energy density
- 257 Wh/kg
- Weight
- ≤49 g
Figures reflect NCM 18650 · High Energy 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 18650 HIGH ENERGY
— Order this cell
INR18650-35E
3500mAh · NCM 18650 · High Energy
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.