How to choose the most suitable battery style for you？ The voltage (V) of the battery is the same as that of the motor.The maximum power (W) and maximum current (amp) of the battery must be greater than or equal to the power and current of the motor (for example, (48V 1000W 30amp) batteries can be used for (48V 500W 20amp) motors, on the contrary (48V 500W 20amp) Battery cannot be used for (48V 1000W 30amp) motor).Please make sure that the location where you plan to place the battery has enough space for the battery you choose.If you want to buy a long box battery similar to Hailong battery, you need to understand the difference of each long box battery in more detail. The following content is introduced in detail.Our battery has no technical barriers, it can be used for most motors. YYINYU Triangle battery Rear frame battery Universal battery pack Upgraded Universal battery Add to Cart Buying Options Buying Options Buying Options Buying Options Customer Reviews 4.2 out of 5 stars 30 3.9 out of 5 stars 18 — — — Price $159.98$159.98 — no data — no data — no data — no data Voltage 36V/48V 36V/48V/52V 36V/48V/52V 36V/48V/52V/60V/72V 36V/48V Maximum current 20amp/25amp 20amp/30amp/40amp/50amp 20amp/30amp 20amp/30amp/40amp/50amp 20amp/30amp Capacity 10AH/13AH 20AH 10AH/13AH/15AH/20AH 10AH/15AH/20AH 13AH/15AH Power 100W-1000W 100W-2000W 100W-1200W 100W-3000W 100W-1400W Warehouse location United States/Canada United States/Canada United States/Canada United States/Canada United States waterproof level IP5 IP5 IP5 IP5 IP5 Battery cell grade A A A A A BMS Intelligent protection chip √Balance function√Overcharge protection√Overcurrent protection√Short circuit protection√Overvoltage protection√Temperature protection√Over discharge protection√Reverse charging protectionWhen the battery is fully charged, it will automatically stop charging. But do not keep connecting the charger for more than 24 hours. Conditions for the correct installation of hailong batteries. The position of the threaded hole of the tripod The distance between the bottom threaded hole and the end of the frame Mounting plate threaded hole The distance between the bottom threaded hole and the end of the mounting plate Conditions that must be met The distance between the bottom threaded hole of the tripod fram and the end of the tripod fram must be greater than the distance between the bottom threaded hole of the mounting plate and the end of the mounting plate.If this condition cannot be achieved, the hailong battery cannot be correctly installed on the tripod fram. The difference between the four batteries. Hailong-1 has a smaller size and lighter weight.No USB plug Compared with Hailong-3 battery case, there are fewer installation restrictions. mount base plate adopts more holes design for easier installtion.No USB plug Hailong-3&Hailong-3B are almost the same, only the discharge plug of the mounting plate is different.Hailong-3&Hailong-3B have USB plugs that can charge mobile devices.With USB plug Hailong upgraded 52V battery with built-in safety bracket!No USB plug Series and parallel (number of cells),Battery energy (WH) ,Battery weight 36V10AH 10S4P（Total of 40 battery cells）,360WH , Battery weight=8.4lb（3.8KG） 36V13AH 10S5P（Total of 50 battery cells）,450WH, Battery weight=8.6lb（3.9kg） 36V15AH 10S6P（Total of 60 battery cells）,540WH, Battery weight=8.8lb（4KG） 48V10AH 13S4P（Total of 52 battery cells）,480WH, Battery weight=9.6lb（4.35KG） 48V13AH 13S5P（Total of 65 battery cells）,600WH, Battery weight=10lb（4.55KG） 52V13AH 14S5P（Total of 70 battery cells）,650WH, Battery weight=10.4lb（4.65KG） Battery capacity（AH） 1AH=1000mAH，Battery energy ：WH=Volt✕AH. for example，Energy of 48V10AH (WH)=48V✕10AH=480WH Battery energy (WH) "AH"&‘WH’does not affect the matching of the battery and the motor. It only determines the mileage of the electric bicycle battery. The greater the WH, the longer the mileag.(WH=Volt✕AH) Applicability The battery can fit most motor kits, for example: Bafang, Voilamart, but exclude these four : Bosch, SHIMANO, Yamaha, Panasonic .