7.2v-18v, nicd/nimh/li-ion 1 hour, heavy duty dual port charger, charges two dewalt. 7.2v-18v nicd/nimh/li-ion batteries, except univolt batteries, so users need only 1 charger for multiple cordless products, charges the battery in 1 hour or less thus minimizing downtime, the dealt 3 stage charging system provides maximum run time & extends overall life of the battery, diagnostics with led indicator communicates battery charge status: charged, charging, power line problem, replace pack & battery too hot or too cold, voltage 7.2v-18v, compatible with all 7.2-18v nicd/nimh/li-ion batteries except for univolt batteries, 3 year limited warranty, 1 year free service contract, 90 day money back guarantee.