A cordless jobsite is only as good as its charger. A slow one means a pile of batteries and downtime waiting on the next pack; a hot, dumb one cooks your expensive batteries and shortens their life. The Rubi Energy CAS charger is the official fast charger for the CAS platform, and its patented Air-Cooled technology is what sets it apart.
Instead of letting the battery heat up as it charges — which is exactly what wears packs out — the Air-Cooled charger actively cools the pack throughout the cycle. That means faster charge times (about 30 minutes per 1.5 Ah), safer charging, and batteries that last more cycles before they fade. It charges every Rubi CAS LiPower and LiHD battery from 12V to 18V, so one charger covers your whole Rubi cordless range.
Here's the real value of CAS: it's a shared standard. This charger and your Rubi batteries work across the Metabo-led Cordless Alliance System — 45+ brands and 450+ tools — so you can standardize one battery fleet instead of juggling a different system for every brand. Keep it charging your Rubi CAS 2.0 Ah and 5.2 Ah LiPower packs, which power tools like the TC-125 G2 Energy saw and the Lumeo work light. Backed by a 3-year official warranty.
Pro tip: Keep the charger's vents clear and out of the dust so the Air-Cooled fan can do its job — a blocked fan means a hot charge, which is the very thing that shortens battery life. Cycle two packs so one's always ready and neither sits around hot.
