Review on 🔋 Ultimate Protection for M-Wave E-Bike Battery: Black Battery Protective Cover by Scott Gamache

I bought two of these batteries for my Bosch PowerPack 500 batteries. Don't quite fit the handle but they do what they're supposed to and for the price you can't beat them. I drove them 45 miles in turbo mode in 40 degrees Fahrenheit and the batteries are about half dead which is what I would expect in normal temperatures. I have yet to see how well they work in winter; I suspect they are suitable for spring and fall, but additional insulation is required in winter.