Vape Batteries

Which battery does my device take?

Check your mod's manual or the battery door. It will say 18650 or 21700, and whether it takes one cell or two. A 21700 is bigger than an 18650, so they don't swap. If your mod takes two cells, use a matched pair of the same battery, bought and charged together.

Also look at the continuous discharge rating (the "A" number) on each product page. It needs to be high enough for how you vape. If in doubt, ask us in the shop before you buy.

A quick look at the cells

• Efest 18650 3000mAh – flat-top, unprotected, 20A continuous.
• VTC6 18650 3000mAh – flat-top, unprotected, rated at a conservative 15A continuous.
• VTC6A 21700 4000mAh – 20A continuous and 30A maximum.
• Samsung 50E 21700 5000mAh – the biggest capacity here, but a lower 9.8A continuous rating, so it suits lower-power vaping.
• 510 battery 400mAh – a slim pen battery with an LED charge display and USB-C charging, for Ten Motives-style cartridges and other small 510 clearomisers.

Battery safety basics

Never carry loose batteries in a pocket or bag with keys or coins. Use a proper battery case. Check the plastic wrap before each use, and stop using any cell with a torn or damaged wrap. Charge loose cells in a proper charger like the Efest charger.

Batteries in stock

Questions we get asked

Do you sell battery chargers and cases?

Yes. See batteries and chargers and accessories.

Which mods take these batteries?

See external battery vape kits and vape mods. Check each product page for the cell size it needs.

Why buy from OB Vape?

OB Vape is an Irish, family-run vape shop in Drogheda, Co. Louth, open seven days a week. We send tracked delivery right across Ireland and do same-day local delivery around Drogheda, or you can collect in the shop. Everything we sell is genuine stock from established brands. We only sell to adults aged 18 and over, and we ID check orders where needed.