Expand your collection with the Hart HLBP011 40-Volt, 2.5 Ah battery. The fade free Lithium-Ion technology keeps your tools running longer. This battery works with all HART 40V tools for compatibility. Get ALL POWER, NO GAS. Lithium-Ion batteries are fade free, so you won't lose power during use compared to Ni-Cad. The 40V cordless system gives you all the power of gas without the hassle. You get instant, easy starting with quiet operation and no complications with oil or gas. All 40V batteries feature LED charge gauges so you always know how much charge is left. The Hart 40V System is quiet, powerful, and hassle free. Welcome to HART’s 40V Outdoor System. Our family of quality lawn and garden power equipment delivers the power of gas without the hassle. The 40V system is ideal for handling larger yards and more demanding projects. All HART 40V power tools use the same rechargeable 40V lithium-ion battery, so you’ll enjoy fade-free power from first cut to last. This lineup expands across string trimmers, blowers, mowers and more.