QQ on ebike controller/battery compatibility?

[bromotocyc]

Hi all, (i posted this originally in "ebike thread", but havent heard ant responses)

Building a 72v 2k(24" wheel) or 3k(20" wheel) rear hub ebike. Here is the battery i have planned to purchase....

72V 20Ah with 80A BMS
Apply for: 72V 2500-3000W Motor
Nominal Voltage: 72V
Rated Capacity: 20Ah
Watt Hours:1440Wh
Configuration: 20S4P (80 cells)
Battery Cell: 21700 Samsung cells
Max Continuous Charge Current: 5A
Max Constant Discharge Current:80A( BMS)
Peak Discharge Current: 160A
Charge Cut-off Voltage : 84V
Discharge Cut-off Voltage : 55V~60V
Battery Dimensions :381*126*183mm
Battery Weight: 7.6kg
With Charger : 3A
Discharge:XT90 (Male&Female)


Which kit would be better (i understand based on watts its 2k vs 3k). I want to know what is the best route with this battery....would the battery be best suited for a 2k or 3k motor? Here are the specs on the hubs:

Motor: 72v 2000w Electric bike rear hub motor wheel (180°C copper winding+ Best magnet )
Wheel: Sun ringle MTX33/39 Double-wall alloy rims spoke (2.6mm spokes spoked by park tool) Throttle: thumb or twist throttle
Brake :two alloy brake levers (for both side power off)
Controller:72V 45A controller
PAS: 1:1 PAS With 8 magnets
Display: Multifunction LCD display
Gear: 7 speed gears

Or

3000W Powerful Brushless Gearless Motorized 20" 24" 26" 700C 28" 29" Wheel Or Motorcycle Wheel 17" 18" 19" 21".
2. 48V-72V Sine wave 80Amp smart controller
3. Controller bag
4. 1 pair of High Quality Aluminum Alloy Brake Levers v 5. Full Twist Throttle
6. PAS 8 Magnets High Quality Pedal Assistant Sensor
7. TFT UKC1 Color display
8. single speed gears
9. alarm Lock

Reminder, the 2k comes with a 7 speed, i will personally go with a single speed. Which motor will be the best compatible with the hub motor?

Thanks in advance....

 

[neptronix]

How fast do you want to go and what kind of hilliness are you looking at in your terrain?

Currently i would recommend a leafbike 1500w motor for anything below 38mph average.

Controller wise you probably want a VESC.. it will work with anything... it even works well in sensorless mode if you have screwed up hall sensors.. kinda high learning curve on programming it

 

[bromotocyc]

Very hilly area....(bremerton WA) ive done 1500watts and want to do eithee option i posted (2k or 3k). Which one would be bettee suited? My main question is regarding the amps the controller can handle compared to the battery amps?

 

[E-HP]

Very hilly area....(bremerton WA) ive done 1500watts and want to do eithee option i posted (2k or 3k). Which one would be bettee suited? My main question is regarding the amps the controller can handle compared to the battery amps?

I would confirm with the battery manufacturer that the pack is made with Samsung 50S cells and not the 50E first, unless you already know.

 

[E-HP]

Hi all, (i posted this originally in "ebike thread", but havent heard ant responses)

You can request for the duplicate thread to be deleted.

QQ: 72v ebike build

Hi all, Building a 72v 2k(24" wheel) or 3k(20" wheel) rear hub ebike. Here is the battery i have planned to purchase.... 72V 20Ah with 80A BMS Apply for: 72V 2500-3000W Motor Nominal Voltage: 72V Rated Capacity: 20Ah Watt Hours:1440Wh Configuration: 20S4P (80 cells) Battery Cell: 21700 Samsung...

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