Boslipo (Arena Version) 7.4v (Mini Tamiya)

Unlike the rest of the Boslipo lineup here, which is mostly the Tactical Version, this is the Arena Version — a 7.4v (2S) high-capacity rechargeable lipo aimed at players who want more runtime out of a single pack, fitted with a Mini Tamiya connector for direct compatibility with blasters already wired for that plug. If you're cycling through games or matches back-to-back, the higher capacity means fewer battery swaps between rounds.

It measures 14cm (L) x 2cm (W) x 1cm (H) — noticeably longer than the standard 11cm Tactical packs, so it's worth measuring your battery compartment before ordering, especially in shorter stocks or compact builds. Charge it on a balance charger rated for 2S lipo, and store it at a partial charge rather than full if it's going to sit unused for a while.