51.8V12.8V/13.8AH/15AH/16AH/17.5Ah Hailong 02 Max downtube battery  for high power ebike usage(30A-40A). If your e- bike is 48V750W or 48V1000W, then this battery will enable your bike runs faster and powerful. If your kit is with BBSHD, we recommend you to use a 52V battery in stead of 48V. The charger for this battery is 58.8V. This battery has an ON/OFF switch and a 5V USB output.

14S 52V14.5AH, 52V16AH, 52V7.5AH, 52V21AH, or 52V19AH E-bike downtube battery with the Jumbo shark case(Polly DP-6, max hold 70pcs 18650 cells, new Jumboshark case, max 91pcs 18650 cells) ; Larger capacity will be available with this battery case; the larger capacity the battery has, the longer distance you can ride with your ebike each time after fully charging.

The 18650 cell prices keep increasing, therefore we are going to introduce 21700 for our packs. The case for the 21700 cells are DP-4C or DP-5C, the mounting for these two case are different with DP-6 or DP-9, please note.

If you prefer to view the battery status via mobile, we can build the battery with the smart BMS, and you can via the battery status via the bluetooth app from the cell phone.

The smart BMS is larger in dimension, therefore only the largest case DP-9(368 x 140 x 90mm) or DP-5C(368*95*125mm) would fit.

If your e- bike is 48V750W or 48V1000W, then this battery will enable your bike runs faster and powerful. If your kit is with BBSHD, we recommend you to use a 52V battery in stead of 48V. This battery has an ON/OFF switch and battery capacity LED. 

Regarding to currently BBSHD 07H error code, If you are going to use this battery for Bafang BBS kits, please inform us, we will set the correct voltage for you before shipment so that your battery can work for the kit.

52V Samsung/Panasonic li-ion tube battery for electric bicycle.

If you have specicial requirement for the battery, please leave us a message for the size you need. If you don't know how to check the dimension, please email us.

If you choose smart BMS for the battery, you can view the batter parameter via mobile app.

If you don't have special requiement for the battery size, we will build the battery with a rectangle shape. 

Dual battery converter with wide DC input 24V -72V. 

Output: DC 24V -72V, max 30A or 40A current. 

Input with XT60 male connector; output with XT60 female connector. 

If you have two batteries(24V-72V),  you want to use the two batteries with one ebike, then you can connect the two batteries with the dual battery converter.  

When you are going to charge the battery, please switch one of the batteries first before charging because the dual battery converter only protect the two batteries discharging; it has no protection for simultaneous charging.