


Batteries by bike
Most of our custom lithium battery pack builds go into these bikes. Pick yours to see voltages, fitment and build options.
Sur-Ron Light Bee60V, 72V or 81V packs
Sur-Ron Ultra BeeHigh-capacity 81V upgrade
Talaria60V and 72V upgrades
Honda CRF250 conversionPacks shaped for the CRF frame
Yamaha YZ450F conversionPacks shaped for the YZ frame
Other dirt bike conversionsBuilt to suit your frame
Riding something else? Ask us in the chat and we'll build a pack to spec.
Batteries by use
Our packs go into more than bikes. Pick your machine to see build options and fitment.
Razor MX650 and MX50048V and 72V lithium upgrades
Drift karts and trikesHigh-current 72V packs
Electric go-karts72V-class kart and race car packs
Go-kart battery upgradeLead-acid to lithium, step by step
Golf cartsCustom, high-power and lifted carts
Mini electric dirt bikesCompact 36V to 60V packs
120V e-bikesHigh-voltage custom builds
Caravans, campervans and camper trailersLiFePO4 packs built to fit the space
Ute canopies and tubsSlimline packs, incl. EV utes
24V and 48V systemsMotorhomes, boats and trolling motors
Building something else? Ask us in the chat and we'll build a pack to spec.
If no ready-made pack fits, we can have a custom lithium battery pack designed. We have packs built to spec in custom sizes, shapes and voltages, and we handle the quote, fitting and support here. These are Fast E batteries, built to spec for us and fitted and supported by our team on the Sunshine Coast, QLD. We quote every job, so you’ll get a price for your exact build.
Who it suits
- One-off builds and prototypes
- Electric projects with odd-shaped battery spaces
- Small businesses needing a short run of packs
What goes into a custom lithium battery pack
Here are example builds we can quote. Each one is a starting point, and the pack can be changed to suit your bike.- Designs based on your sketch, voltage, continuous and peak current and motor model
- No minimum order for custom builds
- Our packs use an ANT smart Bluetooth BMS, so you can monitor voltage and temperature in the ANT BMS app (iOS and Android).
- Cell options include EVE, Molicel and Samsung, depending on the build.
- Our packs use XT60 or XT90 connectors for charging and QS8 or QS10 for discharge. We can match your controller’s plug.
How the quote works
- Start a quote in the chat and pick Custom battery.
- Tell us the bike or application, voltage, capacity or range you want, controller, max continuous and peak current, connectors and quantity.
- Send photos and measurements (length, width, height) of the battery space, plus your postcode.
- We spec the build and come back with a quote and turnaround. We quote every job, so there are no set prices.
- Once you approve, the pack is built, then fitted at our workshop or sent to you by dangerous-goods road freight.
Shipping
Packs this size travel by dangerous-goods road freight, not Australia Post. You can also pick up your pack or have it fitted at our Sunshine Coast workshop.Worldwide supply and shipping
Fast E builds custom lithium battery packs to order and ships them worldwide, including to the UK, Europe, the USA, New Zealand and across Australia. Every pack is quoted to your bike and your country, with freight included in the quote. Tell us your bike, voltage and range goals in the chat and we’ll send you a quote.
