Fold-e folding electric bicycle

The battery of an e-bike is a kind of energy reservoir for the assistance system. The range of the battery is completely linked to the bike and depends on many parameters and factors that have a direct influence. It can vary from one to three times (or even more) depending on:

• Urban: with many stops/starts that consume energy
• In the countryside: more fluid and linear
• On mountain roads with climbs where electric assistance will test the battery over a sustained period with routes where the altitude difference can be very significant overall

• Example of a Dutch-style bike at 25 kg with a very upright riding position that offers significant air resistance for a person weighing 90 kg will automatically consume more than a person weighing 70 kg.

• Rubber type, structure, size, but above all optimal tire pressure! The use of an e-bike with under-inflated tires can represent a loss of range (in km) of 30%.

• In cold weather, a battery naturally loses its range. The optimal temperature is between 15 and 25°C.

• If the user is riding in eco mode, of course they will be able to cover a greater distance than in Turbo mode.

The integration of the battery in the frame gives it additional rigidity and better weight distribution, making the bike more dynamic. The battery is also better protected in case of impact.

48V 13Ah Battery (624Wh) = 120km* - 70/75kg person in eco mode.

36V 16Ah Battery (576 Wh) = 80km * - 70/75kg person in eco mode.

36V 10Ah Battery (360 Wh) = 70km * - 70/75kg person in eco mode.

The first and main factor regarding the range of a fully charged battery is the energy stored in it, which we quantify in watt-hours (Wh) and obtain by multiplying the battery voltage (V) by the ampere-hours (Ah). For example, a 48V 13Ah battery has a full charge energy of 624Wh and a 36V 16Ah battery has an energy of 576Wh.

Once we understand the concept of energy, we need to see the power of the motor, which is what will determine the consumption of this energy. A bike for legal use in the EU can have a motor with a maximum nominal power of 250W, but it does not consume the same when working at the limit of its capacity on a climb of more than 20% (can have peak consumptions close to 150% of its nominal power) than when we use it calmly on a place without slopes.

Once understood this, we can also say that it doesn't help us at all if the cyclist going up a 20% slope does so at a low level of assistance and he does most of the work by pedaling and the cyclist who goes on flat ground goes with a high level of assistance and makes no effort leaving all the work to the motor... To this factor, which is obviously key to range, we can add that there are factors that have less influence such as the weight of the cyclist, his position, his pedaling cadence and the number of times he starts and stops since starts cause consumption peaks.

The type of terrain (uphill or flat), the surfaces (asphalt or road) and even the wind (headwind) and the type and geometry of the tire also have consequences.

For all these reasons, it is very difficult to provide accurate and reliable information about bike range. The information we provide about the range of our products is for a 75kg person with normal bike use, that is, mountain bikes with combined use of paths with climbs and descents, urban bikes with city commuting with many start and stop cycles, etc.

We do not advertise maximum ranges, but real ranges with tests without seeking especially low consumption. We have achieved ranges of over 200km by seeking maximum efficiency, but we understand that it would be dishonest to advertise them since resource use was not normal.

We can only add that the aspect that distinguishes Moma electric bikes from the competition is precisely the range, 100% of professionals who have tested them have been impressed with this figure, for us it is essential in this type of vehicle and we work daily to improve it as much as possible with batteries with high energy storage capacity and very efficient motors that consume minimal energy.