I have 3 of A1501 model chargers. NONE of them work!!! I’ve owned them for maybe 4 years now and charge them every 3 - 6 months. Out of the 3 of them, I might have used them maybe 4 -5 times total.
I tried using them last week on one car. The first one I tried would never get to just the green light. I tried anyway and the engine didn’t turn at all and soon I heard the unit beep continuously until I pulled the cable out. Then it showed no bars. The second one I tried also didn’t go green. Tried anyway. No engine turn. Then it turned green. Still no engine turn again. Went to no bars. Beeping. The third one went green after connection to the battery. Finally! One that works. But no engine turn! stayed green. Tried again. Same result. Beeping. No bars. Also tried holding the power button down for 5 seconds and tried again. No difference.
So, maybe the energy bars weren’t accurate. Plugged them into the wall charger. Immediately each of them showed 5 bars. Unplugged them right away to see how many bars while unplugged. 4 bars each and the flashlight worked whereas before it didn’t. So apparently the bars were accurate before trying to use them. Simply, the stupid chargers didn’t want to work.
Even when new, I had varying degrees of success with them where sometimes it didn’t go green but eventually did. This time, no dice at all. I’m upset since I have been buying Anker cables and chargers for a long time and thought that I finally found a company that was different, with a longer warranty that proved that they believed in their products and made quality ones, unlike the cheap Asian knockoffs. Well, the cables and other light stuff are good, but these jump starters are just crap. I can see why they don’t really market them much anymore and don’t have as many models as they used too. They clearly have had problems with them. I just feel bad that I recommended them to all my friends who didn’t know that these things could replace jumper cables. I hope I don’t leave them stranded by the road. Luckily, I was at home!
I actually finally got my car started with my fourth jumper, another very popular brand on Amazon. Not one glitch. I’ll be buying 3 more of those. I now have $200 worth of giant battery packs at home. Hopefully they’ll work with phones and tablets.
Btw, it was a 2015 Toyota Rav 4 with a 2.5 liter engine.