FcotMiue Ebike Battery Pack 48V 20Ah Down Tube Electric Bike Battery 21700 Lithium ion Batteries with Charger for 500W 750W 1000W 1500W Ebike Conversion Kit DIY


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Price: $419.99
(as of Nov 23, 2023 23:11:40 UTC – Details)

Product Description

Take FcotMiue ebike battery helps you fully enjoy the pleasure of riding!

electric bike batteryelectric bike battery

There are so many similar electric bike batteries online, why buy with us?

Hello, Welcome to FcotMiue!

If you are looking for a dependable ebike battery, then FcotMiue is definitely your ideal choice!

Ours: -True capacity battery pack, battery will maintain 80% capacity after 800 cycles,you will not be disappointed.

Others: -Fake capacity battery pack,capacity drops below 60% of it initial capacity during 3 months,let you lose the fun and passion of cycling.

We only source high A-grade cells from the official sources (never use fake cell to attract buyers ). Assemble all our batteries in our factory.Each pack is ran through a full charge and discharge before leaving our factory,100% Tested Battery,it is paramount.30-day money-back for any reason:For 30 days after the date of purchase, return the unused condition battery with all components and accessories present.ALL RETURNS ARE AT THE BUYER COST!12-month for quality-related issues:For 12 months after the date of purchase, we take care of all quality-related issues with a REPLACEMENT.(Charger not covered.)

Note to buy:

Please ignore “ non-returnable product” on Amazon. If you need return, repair or replacement, please communicate with us, we will help you solve the problems.


FcotMiueFcotMiue About US

Welcome to FcotMiue,this is a manufacturer integrating production and sales ,specializing in the production and sales of batteries.

Packing List:

1 * 48V 20Ah eBike Battery 1 * 54.6V 3A Charger 1*Connection XT60 Cable (Gift: XT60 to Anderson adapter cable)

Replace or DIY convert your bicycle to electric bike

Powerful performance,great value electric bike battery!

Perfect Compatibility:

Our battery can fit most motor kits,such as mid drive and hub motor, for example: Bafang, Tongsheng, but exclude these four : Bosch, SHIMANO, Yamaha, Panasonic.

[Battery level light]- Can check the remaining battery. [Power switch]-With on/off button, save more power. [Lockable-Lock] with keys securely locks the mount on bike frame, prevents the battery from being stolen. [Easy Installation]-Battery come with mounting plate, easy to install and disassemble,attaches to standard water bottle cage.

48V 20Ah Ebike Battery Parameters:(Please double check before purchase!!!)

*Nominal Voltage(V): 48V *Nominal Capacity(Ah): 20Ah *Battery Cell Samsung 50E 21700 cell *Dimension: 381*166*182mm(15*6.53*7.16in) *Max Discharge Current(Amp): 40Amp(BMS) *Max Load Motor Power: 48V/52V 250W 350W 500W 750W 1000W 1500W*MAX (WARNING: Not compatible with motors greater than 1000W) *Charger: 54.6V / 3A DC2.1 charger head *Discharge Plug: XT60 *Cycle Life: ≥80% capacity after 800 cycles. *Weight: 5.2Kg(11.46lbs)

Many benefits:


charging portcharging port

mounting platemounting plate

Built To Last

Battery Cell:- A Grade 21700 Cell

Cell Holder: -spaced gaps provide better heat dissipation and protection for cells.

Soldering Spot: -We use hight quality double layer forming nickel strip spot welding process, good soldering,no false soldering spot,low internal resistance,ensure the satety and cycle life of battery.

Power Switch &Charge Port

Power Switch:

Symbol “o” is power off .

Symbol”-” is power on .

Charge Port: DC5521 charge port, charging current can’t exceed 5amp.

Battery Holder Mounting Plate (4 needles)

NOTE:This battery mounting plate on the bottom of the battery.

It has 4 screw holes can fit most bike frames, it is easy to install and remove.With XT60 discharge connector for connecting your electric bicycle controller.will fit for most water bottle screw holes in bike frames, it is easy to install and remove.

Tip: If the battery discharge port is not compatible with your controller connector, you can cut off the plug of the controller and connect it with the adapter provided by us with adhesive tape.

Power indicatorPower indicator

key switchkey switch


Battery Power Indicator

Press and hold the button the power indicator light will turn on.

1 Red 0 Green 25%,

1 Red 1 Green 50%

1 Red 2 Green 75%

1 Red 3 Green 100%

It will be extinguished after removing your finger instead of long time lightening.

Anti-thief Lock

It can protect your battery very safely, when there is a thief. It can also prevent accidental falling off.

Battery Management System(BMS)

Built-in 40A BMS, protects your battery from Over Charge and Discharge, Over Current, Short Circuiting, as well as Low and High Temperature for increased performance and longer life. The BMS will automatically cut off the battery and the voltage will drop below 1V. Only when the circuit is cut off, the battery will automatically reactivate after 1 second(No longer need a higher voltage input to activate).


The voltage (V) of the battery is the same as that of the motor.The maximum power (Watt) 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 battery pack 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.”‘AH’’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)

maximum current depends on your motor power. eg: your motor is48V 1500W, the max current is 38.4a(1500w/13s/3v=38.4a).

48V 20Ah 52V 20Ah 48V 17.5Ah 48V 24.5Ah 52V 17.5Ah

Samsung 50E Samsung 50E Samsung 35E Samsung 35E Samsung 35E

40A 40A 30A 40A 30A

368*95*125mm 368*95*125mm 368*90*113mm 368*90*141mm 368*90*113mm

Charging port
DC5521 DC5521 DC5521 DC5521 DC5521

【LONG-LASTING ELECTRIC BIKE BATTERY】-Our 48V 20Ah electric bike lithium battery pack retrofit kit for mounting on the bike frame,built-in top A+ quality 21700 lithium-ion cells for longer life and longer range,battery cycle life up to 800+ times;Suitable for 48V 1500W/1200W/1000W/750W/500W/350W motor conversion kit,such as hub motor, mid-motor, rear wheel motor, front wheel motor or hub motor.
【PERFECT PERFORMANCE】-Easy to install and disassemble; LED indicator can provide you a clear awareness of the remaining power; With power switch which can be turned off in time without using the battery to avoid wasting power; Equipped with a Anti-thief Lock, preventing the battery from being stolen. The electric bike battery comes with a mounting bracket with 3 holes that can mount to most water bottle screw holes in the downtube frame.
【RELIABILITY AND SAFETY】-All our electric bike batteries are full tested prior to dispatch! Built-in 40A battery management system (BMS),ensures reliability while driving and safety during charging to protection guards against deep discharge, short-circuit ,overcharging and overheating.
【AFTER-SALES SERVICE GUARANTEE】We are factory direct sales. All batteries enjoy 12 months warranty. If the power is wasted during storage and transportation, charge the battery before use. If you have any questions, please do not hesitate to contact us to confirm whether the battery is suitable for you!

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FcotMiue Ebike Battery Pack 48V 20Ah Down Tube Electric Bike Battery 21700 Lithium ion Batteries with Charger for 500W 750W 1000W 1500W Ebike Conversion Kit DIY
FcotMiue Ebike Battery Pack 48V 20Ah Down Tube Electric Bike Battery 21700 Lithium ion Batteries with Charger for 500W 750W 1000W 1500W Ebike Conversion Kit DIY


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