POWER STORAGE

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BATTERIES

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Batteries are a means to store electrical energy that is released when you drive your car / bike or switch on a device at home if you are not connected to the grid (off grid) with a domestic bank of batteries. There are different battery chemistries that have different characteristics. The Lithium ion chemistry is very popular in cars and bikes because they are lighter in weight than the older chemistry of lead acid and can also be safely discharged down to a low level of charge which shortens the life of lead acid batteries, however lead acid batteries are cheaper to purchase and reportedly can be recycled at end of life much more easily that Lithium Ion although there is much more work that needs to be done with the environmental impact of batteries generally.

We think that ultimately Hydrogen is the ideal clean future fuel once fuel cell technology on which they rely improves. In the meantime we need to rely on batteries for storing electrical energy which is not ideal but hugely better than burning fossil fuels. It is also likely battery technology will also improve over time. Batteries are measure by their capacity in Ah, their voltage and power which is a product of multiplying volts by amps so our classic 36 volt 14 Ah model has 504 watt/hours or 0.5kw/hours which may provide up to 40km range for bikes if ridden carefully on the flat with pedal assist. We offer our own assembled bike batteries with new Sanyo cells in the classic 36 volt 14 Ah format contained within a Hailong pod like containers attached to the down tube of your own bike. We use a high spec 18650 Sanyo 3350mAh cells.

We also make some cool custom designs where we package the battery within the frame itself and will be making more in the future. You can also request higher spec batteries with 48v and 20Ah for serious off roading and performance. We also make mobile energy storage devices that can charge your mobile phone or other small devices when camping and travelling. We call these power banks. We make these devices to order and can use new or reused second life batteries.

BATTERY MAKING COURSES

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Reusing older discarded lithium ion battery cells in a power bank for camping or bigger power wall to power a house is a great way to save prematurely wasting a high embodied energy device. The process involves first testing the capacity of the used cell and discharge rates so that similar batteries can be paired together to avoid unbalanced batteries that can create hot spots. We also have to add a battery management device to ensure each cell is charged correctly then fit within an enclosure. For us to do all this would be very expensive so we offer periodic courses in teaching interested people to make batteries safely.

We will publicise the 2 day courses during the year that will comprise theory, chemistries, formats, safety, design, tools, assembly, practical exercises, specifying, purchasing, housing, and testing

BATTERIES

We make our own batteries for our bikes

Our classic own built bike battery is a high spec 36v 14Ah pack comprising 5 parallel wired sets of 13 series connected brand new 18650 Sanyo 3350mAh cells packaged in a Hailong casing mounted on the current bike downtube. We also make higher power 48v designs to order and with increased Ah to give more range packaged in our own pack integrated in our own custom bikes. We also plan to run battery design and construction courses for bikes, power banks and bigger power walls to run a house.

Batteries are measure by their capacity in Ah, their voltage and power which is a product of multiplying volts by amps so our classic 36 volt 14 Ah model has 504 watt/hours or 0.5kw/hours which may provide up to 40km range if ridden carefully on the flat with pedal assist.