Hailong 36V 500W 250W eBike Motor Battery 8AH 10AH 13AH 12.5AH 14.5AH - E Smart Way

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Hailong 36V 500W 250W eBike Motor Battery 8AH 10AH 13AH 12.5AH 14.5AH Electric Bicycle Downtube Batteries for 8fun Extend Range

Regular price $347.68

Hailong 36V 500W 250W eBike Motor Battery 8AH 10AH 13AH 12.5AH 14.5AH Electric Bicycle Downtube Batteries for 8fun Extend Range

Capacity: 10 - 20Ah
Voltage: 36v
Type: Lithium Battery
Nominal capacity: 8AH 10.4AH 13AH 12.5AH 14.5AH optional
Battery cell: Samsung Panasonic Brand cell optional
Battery type: Hailong Shark downtube frame battery
Battery BMS: 20amps
Battery dimension: 365*90*90 mm
Battery weight: 4.9KG
Configuration: 10S5P 10S4P
Charge cut off power: 42V
Discharge cut off power: 28V
Working temperature: -20 to 65℃
Cycle life: Over 80% capacity after 800 times
Suitable motor power: 500W 250W Bafang BBS Tongsheng motor kit


Hailong 36V 500W 250W eBike Motor Battery 8AH 10AH 13AH 12.5AH 14.5AH Electric Bicycle Downtube Batteries for 8fun Extend Range


Before making orders,


Usually, we make the delivery 5~7 days after receiving your order, in order to produce and make a couple of tests on your battery to ensure you a quality one.

We will use special shipping channels to deliver your batteries, which means you can only track your parcel by the time we finish clearing the customs, please be patient while waiting for the package.

Our batteries work on all kinds of motors/engines, including Bafang, Tongsheng and etc. But not for these four, Bosch, SHIMANO, Yamaha, Panasonic.  (Make sure your vehicle not from them before making the orders)




S039 36V 01


Discharge connectors & Charge plugs



Charge plug, AU/UK/EU/US plugs are available here, write to let us know your preference or we’ll send the proper one according to your location.

Discharge connector, we get several types of discharge connector as below (NO. A~J), leave a message to inform us or you will get a default one.




Product Details


Packing-list-EU ebike battery 36V 48VSize hailong battery 9.17upgrade 2 battery for electric bicyclehailong ebike batteryelectric bicycle batteryInstall- ebike battery 36v 48v 52v


Packing list





Shipping policy


For EU Countries customer: (Tax free)

Air to Europe firstly, then dispatch by Europe UPS/DPD, tracking number can be trackable online after UPS/DPD transferred the parcel.

Shipping time is usually 7-12 working days (not including Sat Sun) after delivery.

For USA Customers: (Tax free)

Shipping by FedEx/UPS, Shipping time is usually 6-12 working days after delivery.

Special Line:

1)Shipping by Special Line to Australia, Malaysia, Thailand, Taiwan, Shipping time is usually 4-12 working days.

2)Shipping by Special Line to Russia (Tax free), tracking online update after arriving Moscow. Shipping time is usually 18-28 working days.

Please note: battery can't be sent to any island address, if you're from an Island address, please check with us before order.





We offer 1-year warranty.

Products delivered within 30 days can be returned or replaced freely if there’s any quality issue.

For products delivered beyond 30 days, we can send BMS to repair if needed.

But not including following situations,

  •  The battery goes over water;
  •  The battery is broken man-made;
  •  The cells are burnt out after using;
  •  Return the battery without reason;
  •  Open a case without contacting us.



Leave us feedback


Sincerely we know it is you who plays a great role in every progress we made. So do not hesitate to inform us how we can improve, meanwhile, kindly leave your 5-star reviews if you feel good about our product, service, and store, your encouragement makes us from good to great. ;)





  • Do not immerse the battery in water or seawater, keep the battery stands by in a cool dry surrounding.
  • Does not use or leave the battery near a heat source as fire or heater.
  • Use the battery charger specifically for that purpose when recharging.
  • Do not reverse the position and negative terminals.
  • Do not connect the battery electrodes to an electrical outlet.
  • Do not discard the battery in fire or a heater.
  • Do not short-circuit the battery by directly connecting the positive and negative terminals with metal objects.
  • Do not transport or store the battery together with metal objects such as hairpins, necklaces, etc.
  • Do not strike, trample or throw the battery.
  • Do not directly solder the battery and pierce the battery with a nail or other sharp objects.


Most Asked Questions


Q: what type is the e-bike battery?
A: It's Lithium-ion battery, Chemical is Li(NiCoMn)O2, and which is the most popular and optimal type of battery for an e-bike today. A lithium battery has the best combination of total weight and capacity. The specific capacity of lithium-ion batteries is the highest of all existing types and this is their main advantage. Lithium-ion batteries do not have the 'memory' effect.
Q: How can I avoid destroying the battery?
A: First, pay attention to the battery's on/off system. Famous manufacturers use the 'sleep mode' in their batteries. You activate the battery mainly by pressing a button or turning on the e-bike on the control display. Once you turn off the e-bike, the battery will 'sleep' on its own after a few hours - so the power from the BMS system will turn off also. If you are riding on, you need to press the button again to activate the battery.
Q: How do I store the battery in winter?
A: Storing the battery during the winter is very easy. Basically, it is enough to charge the battery 50% and store it in a cool place. It is better to store the battery outside the e-bike to prevent unwanted activation.
Q: The batteries heat up during charging, is something wrong?
A: No, that's okay, all types of batteries heat up during charging. So do the chargers.
Q: What is the 'memory effect'?
A: The memory effect happens when a battery is recharged before being completely discharged. The battery 'remembers' the last remaining capacity before the next charge. Therefore, when you charge the batteries before they are fully discharged, the battery usage time will decrease. The batteries used by most of our products (Li-Ion, Li-Pol) have no or a very slight memory effect.
Q: What does self-discharge mean?
A: If the battery is not used after it has been fully charged, it will gradually lose energy. The self-discharge value for Li-ion and Li-Po batteries is very low and fluctuates by a maximum of about 5% per month at room temperature. It is useful to check the battery once a month, and if its capacity has fallen below 50%, charge it to about 70%. The suggestion that deep discharge prolongs battery life is total nonsense!

All batteries in our store are with CE, UN38.3, MSDS, ROSH certification, please rest assured to buy.




E smart way is first Chinese online shop dedicate to short distance transportation whether it is for fun or commute, we offer Free Shipping for Hailong 36V 500W 250W eBike Motor Battery 8AH 10AH 13AH 12.5AH 14.5AH Electric Bicycle Downtube Batteries for 8fun Extend Range