Hohm Tech 21700 Batteries

Hohm Tech 21700 cells are high-drain lithium-ion cells from a US-based brand that's made detailed, published ratings its calling card.

Where many brands leave specs vague, Hohm Tech leans into documentation — giving builders thorough information on its cells. Stepping up from 18650, its 21700 cells bring more capacity and energy headroom while targeting strong, high-output performance for demanding builds.

For a pack builder, the draw is a well-characterized cell from a brand that takes ratings seriously — a solid pick when knowing a cell's real behavior matters to the build.

Why builders choose them

• US brand known for transparent, detailed cell ratings
• 21700 capacity and energy advantage over 18650
• Built for demanding, high-output performance
• Well-documented cells for serious builds

Built for

• Custom and DIY 21700 pack builds
• High-output and high-drain devices
• Power-tool and portable power packs
• High-current performance builds