looking for 2A single bay/double bay protected & unprotected 21700 charger

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looking for 2A single bay/double bay protected & unprotected 21700 charger

Looking for a single bay/double bay charger which can charge both unprotected and protected 21700 batteries at 2A. Bonus if it can also charge 18350 at 1A or lower.

gchart's picture
Last seen: 5 hours 24 min ago
Joined: 03/19/2016 - 11:57
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Location: Central IL


I don’t have one of these, but I do like Xtar chargers. Their ST2 should fit the bill, but it doesn’t go down to 0.5 amp charge. Link

Astrolux SC01 would be a budget option, but again, probably not great for 18350.

The Vapcell S4+ is currently my charger of choice. It could do what you want, but it’s 4 bay. I’ve only had 1 21700 that wouldn’t fit well and it had a built in USB-C port that made it extra long.

KevinZA1988's picture
Last seen: 1 month 1 week ago
Joined: 02/26/2018 - 02:26
Posts: 807
Location: South Africa

Check on Banggood:

Astrolux SC01
Astrolux VC04
Astrolux PD2

Some of them, if not all, can take 21700 up to 75mm long. USB Type-C input is a bonus IMO.

Acebeam L18, Armytek Prime C1 Pro, Armytek Prime C2 Pro, Armytek Tiara C1 Pro, Astrolux MF01 Mini, BLF Q8, BLF A6, BLF FW1A, BLF FW3A, BLF FW3C, BLF LT1, Convoy L6, Convoy C8+ , Convoy S3, Emisar D4, Fireflies E07, Jaxman E2L, Manta Ray C8.2 long version, Olight S1R Baton II special edition series, S2R Baton II, Olight Baton 3, Olight Warrior Mini, Olight M2R Pro Warrior.

Most of them have been modded! =)


Last seen: 13 hours 49 min ago
Joined: 08/04/2017 - 23:58
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Location: Manila, Philippines

single-bay 2A charger (2A only) that fits protected 21700:
- Xtar SC1 (charges at 2A only)
- Astrolux SC01 (charges at 2A only)
- Astrolux MC01 (charges at 0.5A/1A/2A, and can also charge NiMh)

dual-bay 2x 2A charger...
I believe to charge 2x 21700 batteries at 2A each, would require more power than ordinary USB voltage, and will require QuickCharge
- based on specs, the Nitecore UMS2 is a dual-bay charger that appears to be able to charge 2x 2Amp, when using QuickCharge USB input.

The Xtar PB2S and Astrolux PD2 are powerbank/chargers can also charge 2x 21700 batteries at 2Amp, when using QuickCharge USB input, but won't fit protected 21700 (will fit unprotected 21700 only). These won't be able to charge 18350 batteries though.

Last seen: 3 days 1 hour ago
Joined: 02/10/2017 - 14:33
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Location: Bulgaria

Xtar SC2 would charge with 2×2A or 1×3A if connected to QC 3.0 adapter. It fits protected 21700