FAQ: Q: What kind of battery does the Hart hlbp02 use? A: Expand your collection with the Hart HLBP02 40-Volt, 4.0Ah 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 … Read more