Review on 🔋 Powerextra 2-Pack 3.7Ah 18V HPB18 Replacement Battery – Compatible with Black and Decker HPB18 HPB18-OPE 244760-00 A1718 FS18FL FSB18 Firestorm 18 Volt Battery by Dustin Citizen

So far so good. I've had these batteries for about two months now and they're still working great. They last a lot longer than the Firestorm battery I bought from Home Deport for $39. I'm really impressed so far. Even if they die in a year I would still consider this a 5 star purchase. For example, my Firestorm battery, when new and fully charged, might only last about 8-10 minutes on my trimmer, but these Powerextra batteries last about 20 minutes - each! I'm not sure how many charges I will receive, I've only charged twice in two months, but for now I don't care. I will update this review if they suddenly die next month. I keep these batteries in my garage in Phoenix, Arizona so we'll see how they handle the constant 120F summer heat.