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How to Choose the Right Size Battery to Maximise Your eBike Range

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September 13, 2022

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When it comes to electric bikes, the battery is everything. Not only does it provide the power to make the bike go, but it also heavily impacts the overall weight and eBike range. Therefore, picking the right-sized battery for your ebike is essential to get the most out of your investment. Here are a few things to consider when choosing a battery for your ebike.

Essential Considerations for eBike Batteries

Your ebike battery is one of the most critical components of your ebike. It is what provides the power to make your ebike go. So, it is important to pick the right-sized battery for your ebike. Here are a few things to consider when picking the right sized battery for your ebike:

1. The cost of the battery. You want to make sure that you get an affordable battery but still made with good quality components. The battery cells, BMS (Battery Management System) and size are all very important factors. Cheap is rarely a wise choice when it comes to eBike batteries!

2. The size of the battery. You want to make sure that the battery is not too big or too small for your ebike.

3. The type of battery. You want to make sure that you get a battery that is compatible with your ebike.

eBike Range: What to Keep in Mind

When you’re shopping for an electric bike, one of the most important factors to consider is eBike range. How far do you need to be able to go on a single charge? This will help you determine what size battery you need. Here are a few things to keep in mind when choosing the right sized battery for your ebike.

First, consider how you’ll be using your ebike. If you only plan on using it for short trips around town, then you won’t need as much eBike range as someone who wants to use their bike for longer rides or even commuting. Second, think about the terrain you’ll be riding on. If you live in a flat area, you won’t need as much power to pedal uphill as someone who lives in a hilly area.

When it comes to electric bikes, one of the most important factors to consider is battery capacity. You need to ensure you have enough juice to get you where you’re going, but not so much that you’re being weighed down and wasting energy. So how do you calculate the perfect battery capacity for your ride and nail your eBike range? First, consider how many watt hours per mile you’ll need. This will depend on your rider’s weight, speed, and terrain. A good rule of thumb is around 20-25 watt hours per mile. Next, consider efficiency. The eBike range will also be affected by this. If riding in hilly terrain or headwinds, you’ll want a higher range to account for the extra energy expenditure.

Let’s look at an example. If you have a 48V 14Ah (672Wh) battery and you can achieve an eBike range of 30 miles, then that is how you calculate your ‘watts per mile’.

48v x 14Ah = 672Wh

672Wh ÷ 30 miles = 22.4 watts per miles.

Now we know our watt per mile we can look at different battery capacities to help work out what size battery we need to achieve our desired range.

Here are 3 different batteries and how using these batteries will alter our range.

48v 17.5Ah (840Wh) – 840Wh ÷ 22.4 watts per miles = 37.5 miles estimated range – View our 48v 17.5Ah battery here

48v 20Ah (960Wh) – 960Wh ÷ 22.4 watts per miles = 42.85 miles estimated range – View our 48v 20Ah battery here

52v 14Ah (728Wh) – 728Wh ÷ 22.4 watts per miles = 32.5 miles estimated range – View our 52v 14Ah battery here

1. Batteries in parallel: if we now run our ebike batteries in parallel, we can further boost our range. This will help us make the most of the energy we have available and extend our batteries life.

2. DATEx2 for range boost: by running our ebike batteries in parallel, we can double the amount of time we can ride for, or increase our eBike range by up to 100%. Learn more about the DATEx2 device here

3. Battery life extension: not only will running our batteries in parallel help to increase our eBike range, but it will also help to extend the life of them. This is because when we use two batteries in series, they share the load equally, and so each battery works harder and wears out faster. Finally, take into account your own personal riding style.

In conclusion, knowing your watts per mile is the key to choosing the right size battery for your electric bike. With this information, you can easily find a battery that will give you the power you need to ride your bike for miles and miles. So get out there and enjoy the ride and maxmise your eBike range!

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