XTAR Rocket SV2 Battery Charger

The XTAR Rocket SV2 Battery Charger is a 2-bay smart charger for users who want faster charging for common rechargeable batteries, especially 18650, 20700, 21700, 26650, AA, AAA, C, and D batteries. From a reviewer’s point of view, the big win is that it gives you speed and control in a simple charger: two independent slots, selectable charge currents, and a clear LCD screen. Therefore, it’s a strong choice if you rotate multiple vape, flashlight, or high-drain rechargeable batteries and do not want to wait all day for a basic charger.

The XTAR Rocket SV2 is built for speed. XTAR lists a maximum charge rate of 2 × 2.0A, meaning it can charge two compatible batteries at up to 2A each. In addition, XTAR says it can fully charge two 2500mAh batteries in about 90 minutes under the right conditions. However, fast charging should only be used with batteries that can safely handle it. In practice, I like the SV2 because you can choose between 0.25A, 0.5A, 1.0A, and 2.0A, so you can slow-charge smaller or older cells and fast-charge suitable larger cells.

The XTAR Rocket SV2 supports both Li-ion and Ni-MH / Ni-Cd rechargeable batteries. That means it can handle many popular sizes, including 10440, 14500, 16340, 18350, 18650, 20700, 21700, 22650, 25500, 26650, 32650, plus household-style rechargeable cells such as AAAA, AAA, AA, A, SC, C, and D. Moreover, the wide slots make it useful if you own larger cells like 26650 batteries. Consequently, it is a flexible “one charger for many batteries” option.

Yes. The XTAR Rocket SV2 has independent charging for each slot, so each battery is monitored and charged separately. This matters because two batteries may have different capacities, charge levels, or ages. As a result, the charger does not simply treat both cells as one pair. Instead, each slot can manage its own charging process, which is exactly what I want to see in a charger used for vape batteries, flashlight batteries, and rechargeable household cells.

Yes, the XTAR Rocket SV2 is a good match for compatible vape batteries such as 18650, 20700, 21700, and 26650 cells, provided the batteries are in good condition and are safe to charge at the selected current. In addition, the SV2 offers selectable current levels, so you are not forced to charge everything at maximum speed. However, battery safety still matters: always inspect wraps, insert batteries with the correct polarity, avoid damaged cells, and store loose batteries in a protective case like our XTAR Battery Case. Therefore, the charger helps manage charging safely, but proper battery handling is still essential.