Description
Efest IMR 18350 Battery: 700mAh, 7A Continuous, 10.5A Pulse
A compact Efest IMR 18350 cell: 700mAh and 3.7V, rated 7A continuous and 10.5A pulse. Those figures are printed on the cell itself.
Our listing used to call it an 18500. It’s an 18350: shorter than an 18650, for small tube mods and compact devices built around the 18350 size.
🔌 Efest IMR 18350 at a Glance
✔ 18350 size
✔ 700mAh
✔ 3.7V IMR
✔ 7A continuous, 10.5A pulse
✔ Efest
Efest 18350 Specifications
As printed on the cell.
| Spec | Efest IMR 18350 |
|---|---|
| Size | 18350 |
| Chemistry | IMR |
| Capacity | 700mAh |
| Voltage | 3.7V |
| Continuous discharge | 7A |
| Pulse discharge | 10.5A |
What Does the 18350 Fit?
Devices built for 18350 cells: small tube and mechanical mods, and compact devices designed around the size. Check your device’s manual, and never use a cell above its rating.
Chargers we stock that take 18350 cells: the XTAR VC2, XTAR VC4, XTAR X2 and Nitecore D2.
How to Fit, Charge and Carry an 18350
- Check the wrap before every use: never use a cell with a torn wrap or a dent.
- Fit it following your device’s markings, positive end to the positive terminal.
- Charge it in an external charger that takes 18350 cells.
- Carry spares in a case, never loose in a pocket.
How Long Does a Charge Last?
700mAh is small, so an 18350 suits short sessions at low power. Over months of use every Li-ion cell loses capacity; replace it if it gets hot, drains noticeably faster, or its wrap is damaged.
18350 Troubleshooting
| Problem | Likely cause and fix |
|---|---|
| Device shows low battery quickly | 700mAh doesn’t last long at higher wattage. Lower the power, or carry a spare. |
| Cell gets hot | You’re probably drawing more than 7A. Lower the wattage. |
| Torn wrap | Stop using it and rewrap or replace it. |
| Won’t fit | Check your device takes 18350, not 18650 or 18500. |
Battery Safety
Keep cells in a case, charge them on a hard surface and never unattended, and stay within the continuous rating. If you’re unsure whether a cell suits your device, bring both in and we’ll check.
Buy 18350 Batteries Near You
Need an 18350 battery today? Our Totton vape shop, Hythe vape shop and Holbury vape shop stock vape batteries, chargers and spares, and the team can check which resistance suits your device and e-liquid. Bring your device and we’ll check the cell suits it. Stock varies by store, so give us a call before you travel. Ordering online instead? See our delivery options.
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Frequently Asked Questions
Is this an 18350 or an 18500 battery?
An 18350. The size is printed on the cell.
What is the Efest 18350 discharge rating?
7A continuous and 10.5A pulse, as printed on the cell.
What wattage can I use with an 18350?
We’d keep a single-18350 device to about 20W.
What charger do I need?
Any Li-ion charger that takes 18350 cells.
Is IMR the same as Li-ion?
IMR is a type of lithium-ion cell. Charge it in a Li-ion charger.







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