XTAR MC1 Plus Review: Compact USB Charger for 18650, 21700 & More (2026)
Frequently Asked Questions
Can the XTAR MC1 Plus charge NiMH AA or AAA batteries?
No. The MC1 Plus is designed only for 3.6V/3.7V lithium-ion batteries. It will not charge NiMH (1.2V) AA/AAA batteries or newer 1.5V constant-voltage lithium AA/AAA cells. Use a dedicated NiMH charger or the XTAR VC4SL/VC8S which support both lithium-ion and NiMH types.
How long does it take to charge an 18650 battery with the MC1 Plus?
A typical 3000mAh 18650 battery takes approximately 3.5 hours to charge from 0% to 100% using a 1A USB power source. Actual charging time may vary based on battery capacity, starting voltage, and the capability of your USB power source.
Can I use a power bank or laptop USB port to power the XTAR MC1 Plus?
Yes. The MC1 Plus is USB-powered (5V/1A) and works with any standard USB source: wall adapters, laptop USB ports, power banks, or even small solar panels with USB output. For fastest charging, use a source that can deliver at least 1A.
Is it safe to leave a battery charging overnight in the MC1 Plus?
The MC1 Plus includes overcharge protection that automatically stops charging when the battery reaches 4.2V. While it is generally safe to leave a battery charging overnight, we recommend unplugging once charging is complete (LED turns green) as a best practice for maximizing battery longevity.
Does the XTAR MC1 Plus support large batteries like 26650 and 21700?
Yes. The MC1 Plus supports batteries from 10440 up to 26650 in length. The spring-loaded contacts accommodate the full range of supported sizes. Larger batteries like 21700 and 26650 will take longer to charge due to their higher capacity.
What does the LED indicator mean on the XTAR MC1 Plus?
The single LED shows charging status: solid red means charging is in progress, solid green means charging is complete. If the LED does not light up when a battery is inserted, check that the battery is inserted with correct polarity and that the USB power source is properly connected.
