XPR3300 & XPR3300E When you need to stay connected out in the field, you need a reliable two-way radio battery for your unit. We know that having a dependable battery in your two-way radio can save lives. Radiotwoway is your trusted source for a wide selection of radio batteries, from high capacity lithium ion, to dependable NiMH and NiCd packs. Volume purchasing programs are available.