An e-bike battery is measured by its voltage (V) and ampere-hours (Ah) rating. To calculate the Wh of an e-bike battery, we simply
multiply V and Ah to get Wh
. E.g., a 50V 15 Ah battery will have a capacity of 750 Wh (50 x 15 = 750). A 30 V 20 Ah battery will have a capacity of 600 Wh (30 x 20 = 600).
How do I match my ebike engine battery?
The key thing here is to
match the amps of the controller, to the discharge rate of the battery
. Typical Ebike batteries have a discharge rate of about 2c, and it's recommended by many to not discharge at 2c any more that you must. 1.5c max is better.
How long will 48V 20Ah battery last?
In theory, a bike with two riders, loading 150 kg, 48V 20Ah battery pack could run
40 Km
, and a bike with one rider could run 70 km with a smaller accelerator. Accelerator pedal size has a big effect on mileage. The 48V12A battery, theoretically, could run 40-50 kilometers with 300 pounds of cargo.
How long will a 48V 30ah battery last?
| Battery Type PVC Pack | Cycle Life 1000+ cycles | Normal Charge Current 2.0 Amps | Maximum Continuous Charge Current 5.0 Amps | Nominal Continuous Discharge Current 15.0 Amps |
|---|
What is a good size battery for an ebike?
Most electric bikes accept nominal voltages – 36 volts or 48 volts. Generally, electric bikes come outfitted with a
18650 cell
. Lithium cobalt battery cells can hold up to 4.3v with a full charge and about 3.1v after discharging.
Can I use a 60V battery on a 48V motor?
Re: How to use a 60v battery pack on 48v motor
You need to know the max voltage charge of your 60V pack to determine if it will work with your setup. What's the specs on the pack? At worst, you will need a new controller, but
if max charge is 60V, then it will work fine without a problem
.
Can I use a higher Ah battery for my ebike?
The answer to this question is
doubtlessly yes
. The batteries with higher amp hours deliver more power and more performance, allowing the battery to work for a longer time on a full charge as compared to the cells with lower amp hours.
How do you match a battery to a controller?
Well-Known Member.
The battery voltage needs to match the motor rating
. The controller voltage rating needs to be the same or higher. The battery AH rating should be chosen based on the motor power rating ÷ motor voltage rating x 1hr.
Can I use a different battery on my ebike?
Therefore,
a battery with a different amount of volts or amps would produce totally different Watt-hours
. Further, the volts and amp-hours must not only match the battery charger you're using (generally the one that comes with the battery) but also the total wattage of the e-bike itself.
What is better 24v or 48V?
If your energy needs are around 1,000 to 5,000 watts, go for a 24 volt system. If your energy needs are over 3,000 watts, go for a 48 volt system
. Large off-grid houses often use 48V.
Is a higher Ah battery better?
As a general rule,
a higher Ah battery is better for delivering more current
, which implies more power in watts. A higher Ah rated car battery will generally deliver more cold cranking amps (CCA), while a deep-cycle battery can deliver medium currents for a longer period of time.
How fast is a 1000w eBike?
While it might not seem that fast when compared to driving, a 1000-watt e-bike equates to a speed of
roughly 35mph
. These powerful e-bikes are typically used for off-roading activities and rough terrain, as opposed to a routine commute.
How do I calculate the range of my electric bike?
To calculate the watt-hours of your ebike battery,
multiply the voltage (V) by the amp hours (Ah)
. Using Rad Power Bikes 7.5 lb. Lithium Ion battery as an example: 48V x 14 Ah = 672 watt-hours (Wh), which garners you an expected range of between 25-45 miles on a single charge.
How far can a 250W electric bike go?
| Battery Capacity Full power range (250W) Medium power range (120W) | 5.2Ah (ECO) 45 mins 1hr 30 mins | 7Ah (PRO) 1 hour 2 hours 5 minutes |
|---|
Is 250 watts enough for eBike?
If you're 100 pounds, a 250-watt motor may be enough for you
. But if you're 220 pounds, a 500-watt motor might be better for you because the top speed somebody on a 250-watt motor at 100 pounds can hit might be pretty close to the top speed somebody that's 250 pounds on a 500-watt could hit.
Can I use a 48V battery with a 36V motor?
Most 36V controllers will support a 48V pack
, but the LVC will still be set for a 36V pack, so you'll need to monitor pack voltage and not let it get too low. You can verify this by opening the controller and checking the caps and fets. If it has 63V main caps it should be fine.
What does Ah mean on a 12V battery?
Capacity –
Amp hours
(Ah):
Battery capacity is measured in Ah, or Amp-hours. As the name suggests this means how many amps the battery can deliver in an hour. For example, a 12V lithium battery with a capacity of 100Ah can deliver 100A to a 12-volt device for one hour.
How long will a 500 watt battery last?
Under a full load, a 500 watt inverter running from a 12V battery will be using up to 40A. In a nutshell, a 500 watt inverter will run from a 12V battery for approximately
17 hours
.
Can I use a 72V battery on a 48V controller?
Re: 72V input to 48V controller
no, you can't
; you need a 72V controller, made or bought.
How fast is 48 volts in mph?
Registered. Any car at any weight at 48 volts will go exactly
0 mph
. You need current and voltage to get to power, to get a vehicle to move.
How fast is 60V in mph?
This stylish scooter style is a great vehicle for getting around town. It is one of our newest models to complete our line of electric two-wheeled vehicles. It has a cruising speed of
42 mph
.
Will a higher voltage battery make my eBike faster?
A battery that is at a higher state of charge has a higher voltage. The speed of a DC motor (like the one in your e-bike) is entirely voltage dependent. So
higher voltages = higher speeds
. By keeping your battery at a higher state of charge, you'll inherently travel faster.
What is the difference between 18650 and 21700?
The stronger heating and lower resistance of 21700 cells than the 18650 results in higher polarization in the 18650 and deviations between the voltage curves for the two formats at higher C rates.
The 21700 has about 50% greater capacity and energy density than the 18650 for discharge rates up to about 3.75C
.
Can I upgrade my eBike battery?
In reality,
swapping out your old eBike battery for a new one is easy, as long as you do it correctly
. You don't have to purchase a brand new eBike just because the old battery is dead or damaged.
