MXJO 18650 3500mAh 20A Battery (Pack of 2) Review
The MXJO 18650 3500mAh comes as a 2-pack of rechargeable, unprotected flat-top 18650 cells. MXJO rates each one at 3500mAh and 3.7V nominal, with 10A continuous and 20A pulse discharge. The 20A in the name is the pulse rating. Browse all vape batteries.
MXJO 18650 3500mAh Highlights
3500mAh
Each cell is rated at 3500mAh, with a 3.7V nominal voltage.
10A Continuous
MXJO rates the cells at 10A continuous and 20A pulse. Keep your device’s steady draw under 10A.
Flat Top, Unprotected
The cells have flat tops and no built-in protection circuit.
2 per Pack
Each pack holds two cells. Charge, use and replace them together.
MXJO 18650 3500mAh Specs
Battery
- Format: 18650
- Capacity: 3500mAh
- Continuous discharge: 10A
- Pulse discharge: 20A
- Nominal voltage: 3.7V
- Full charge: 4.2V
- Top: flat top
- Protection: unprotected
- Size: about 18.3 × 65.4mm
- Weight: about 47g each
- Pack: 2 batteries
Batteries
Use these MXJO batteries as a matched pair in dual-battery devices, and charge, use and replace them together. Don’t charge batteries overnight or unattended, carry spares in a case, and replace any battery with a torn wrap. The FDA has more battery safety tips.
How to Use MXJO 18650 3500mAh Batteries
- Charge them first: use a Li-ion charger that takes 18650s, such as the Efest Slim K2 or Nitecore CI2.
- Check the wraps: make sure each wrap is whole, with no tears or dents, before you put the cells in.
- Insert them: match the + and − ends to the marks in your device’s battery bay.
- Keep them together: in a dual-battery device, always use these two cells as a matched pair.
Who MXJO 18650 3500mAh Batteries Are For
They suit lower-power devices that take 18650s, where run time matters more than high current. For high-wattage mods, choose a higher-amp cell such as the MXJO 18650 2500mAh 35A. For charging, see our battery chargers.
Good to know: They’re unprotected, so never carry them loose in a pocket or bag with keys or coins. Flying? Our guide to flying with a vape covers the carry-on rules for spare batteries.
What’s in the Pack
- 2 MXJO 18650 3500mAh batteries

