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Flex 24V Battery Compatibility Guide/

Flex 24V Battery Compatibility Guide

Updated: June 15, 2026 | Garage Almanac

The Short Answer

All Flex 24V batteries fit all Flex 24V tools.

Platform	Flex 24V
Nominal voltage	24V (24V)
Cell format	6x 21700 (stacked lithium)
Introduced	2020
Charges with	Flex 24V chargers
Official info	Flex batteries & chargers

The Flex 24V is a 24V platform introduced in 2020, built around a 6x 21700 (stacked lithium) cell pack. All Flex 24V batteries fit all Flex 24V tools.

Legacy & cross-generation: Flex (US/Chervon, sold at Lowe’s) is a separate platform from the German Flex brand and from Skil PWR Core (also Chervon).

Worth knowing: 24V nominal is a ‘max’ figure (~21.6V real).

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