This is an additional battery for my M900 Richbit electric fat tyre bike. I bought the additional battery as I operate guided bike tours and use the M900 as my personal guide bike, fitted with Richbit pannier as shown in pic. It’s a wonderful bike, extremely comfortable rider position and good range of power settings / gear ratio. I’m extremely satisfied with both the M900 bike and additional battery, would highly recommend both products.

La batería de repuesto funcionando perfectamente