Electric bike battery downtube e-bike triangle battery big capacity

  • $398.00
Tax included. Shipping calculated at checkout.

Down tube battery is including a battery,a bag and a standard charger,this triangle battery is special for DIY use.

Applicable Motor: 500 W,750 W,800 W,1000 W,1200 W,1500 W
Norminal Voltage:48 V/52 V  Rated capacity: 14.5 Ah- 20 Ah
Composition(Cell Type): 3.7 V 2.2 Ah-3.0 Ah cell  Battery Combination:13S8P,14S6P,14S8P,14S9P
Cell quantity:104pcs-126pcs  Standard Charging current: 2 A/3 A
Max. Volt for Charging: 58.8 V  Cut-off volt:42 V
Time for fully charging: 7-10 hrs
15-30 A continuous 60 A Peak,

BMS function:
Over-Current Protection,Over-Discharge Protection, Over-Charge Protection,Short-Circuit  Protection, Balance





Charger :
2 A/3 A plastic shell charger input plug provide match different countries

AC port selection:

Please select suitable AC charging port for the battery

DC port:

Please select suitable DC discharge port for battery

Test video


 Battery Type Lithium-ion
Battery N.W/G.W 5.5 KG/6.5 KG
Battery Size(mm) 315 X 70 X 280 X 80 X 220 mm---*75 mm(thickness).The actual size may smaller than above size for different capacity.
Component Li(NiCoMn)O2
Cell quality 18650-2200-3000 mAh LG/Samsung/Panasonic
DischargeStandard current ≤15 A-30 A
Max current ≤60 A(100us)
Discharge cycle life 500 times(≥80%)
Charging method AC
Certification CE,RoHS,MSDS
Working temperature Charging 0°C~45°C
Discharging -20°C~60°C
Storage 0°C~30°C
Safety PCB board Protection
Board Protection



All electric bicycle batteries will be sent out within 7 days(except for statutory
holidays) after the payment verification, if need it urgent please contact us.
E-Bike batteries shipping will be Free Tax to US, AU and EU countries,Malaysia, Singapore, NewZealand,Thailand,Russia to others countries we will help to declare lower value for customs.


1. Do not put the battery near heat source, like fire,heater device or expose it into

direct sunlight

2.Do not connect the positive end and negative end in contrary way

3. Do not disassemble or deform or dissect the battery to get satefy

4.Do not connect the positive terminal and negative terminal together with metal stuff  


5. Do not depress or knock or shtow the battery roughly,do not tramp the battery

6.Do not stab the battery with pointed or sharp metal stick

7.Do not sink the battery into water, and keep to put the battery on a dry clear place

8. Check the wires carefully before using the battery after a long time of storing to avoid

any connection from positive end and negative end before of damaged wires

9.Make sure to charge the battery in a circumstance of more than 0℃

10.Do not use the battery in a strong static-electricity place or near a strong magnets

11. Cut off the charging and put it to a empty place immediately if you find the battery

tend to very hot or give off strange odour.

12. tape the wires terminal with tape to insulate them if you plan to store it for a long

time,like 6 month

Tips you want to know:

IMPORTANT :The battery actual dimension may smaller than described on website for different capacity.

About discharge port type,we have almost all of popular used connectors on the market,if your connector is not on the list please leave messages and connector pictures we will do the correct one.

About shipping,we will process your order when payment is done,delivery option would be standard UPS according to your country address,the door to door shipping time is about 15-20 days.The default address would be the bill address,please leave a correct address and telephone number when check out.

About warranty,our products do 1 year warranty for customers,if there are issue parts due to our products quality cause we will resend spare parts for free.