Whenever I use it for my laptop (under 2hrs usually), I even use it to heat up water for tea ( about 3-4 minutes with one of those in cup heating thingys, then it just needs a little topping up. The Solar charger does that great not even needing too much sunlight or light . Here's the official blurb for the Power Pack: Five functions in one small, powerful, portable unit! Acts as a jump-starter, air compressor, power inverter, 12 volt battery, and map light. * Powerful 12V, 17 amp hour rechargeable maintenance-free lead acid battery with dual 12V outlets * 36" jump-start cables with copper-plated clamps * 260 PSI air compressor with gauge * 400 watt power inverter with dual AC outlets for running household electronics * Super-bright LED map light * AC and DC power ports * Battery level indicator * Deluxe heavy duty rubberized case * Portable for anywhere, anytime use Battery jumpstart: 600W amp crank and 1000W surge Overall dimensions: 10.6" x 8.4" x 12" Cheap Salon Styling Chairs Discounted Frye Boots Boston Discounted Low Cost Artisan Stand Mixer Kitchenaid
