[This review was collected as part of a promotion.] Holds enough charge to mow almost 1/2 acre (without using self-propulsion. I try to use self-propulsion on uphill only to preserve the battery. Even if you used it the entire mow, you’d probably get through at last 1/4 acre before having to recharge. Charging takes roughly 45 mins. Not bad at all!!!! Love this battery!!!