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48V 18Ah Battery

Regular price £329.99 GBP
Sale price £329.99 GBP Regular price

48V 18Ah Li-ion Downtube Battery With 3A Charger

This battery is suitable for 1500W and 1000W conversion kits.

With a 4 hole mounting plate the battery is convenient to install and comes with connections that match our 1500W conversion kit or an adaptor can be provided if pairing with our 1000W, this makes converting your bike even easier!

Product Features:

Battery capacity: 18A

Battery nominal voltage: 48V

Battery limit voltage: 54.6V

Charger current: 3A

Charger voltage: 54.6V

Battery size: 360*140*86

Weight: 5.3kg

Applicable power: 0-1500W

Battery Type: Lithium Ion (Li-Ion)

Cell: 18650 Li-ion

Install Position: Down Tube

2 Keys and locking device

4 hole mounting plate

Item will be delivered in 1 to 3 business days, the greatest of care will be taken to ensure a fast and reliable delivery experience. Tracking number provided.

Item is dispatched within 2 working days using a 24 hour courier service, the greatest of care will be taken to ensure a fast and reliable delivery experience. Tracking number provided.

As an environmentally conscious company we try to keep our waste material to a minimum so on the odd occasion we like to reuse packaging for our orders where possible.

If you are not completely satisfied with your purchase, you may return it to us for a full refund within 14 days.

For further details please see our full returns policy.

Tax included. Shipping calculated at checkout.


Delivered with instructions manual & videos.

  • Selected Battery

  • Powerful Charger

  • Instructions Manual



Electric bikes are taking the world by storm as a convenient method of travel making use of a hybrid power source in the form of human pedalling and electric motor propulsion. There are many kinds of e-bikes available but they generally fall into two broad categories: bikes that assist the rider's pedal-power and bikes that add a throttle, allowing for a full electric mode.


Well the short answer is simple… it’s cheaper. Also you have the freedom of customization.

You can walk into your local bike shop and pick up a budget, very basic ready built E-Bike for well in advance of one thousand pounds or there’s the option of purchasing a conversion kit and a battery to build your own for a significant saving. If you have an old bike in the shed, why not convert that? We have seen many different styles of bike converted in some very interesting ways.

For riders who can’t resist the urge for speed, the higher wattage motors are available and a ridiculous amount of fun when flying down a dirt track! A nice sturdy mountain bike combined with the G-VOLT 1500W conversion kit is easily capable of hitting 40mph so you can create your own serious piece of kit.


Over 150+ positive reviews & feedback

  • Quicker than promised

    The items arrived quicker than promised and we'll packaged. All parts were in good condition and fitted as expected. I will use them again and can recommend to everyone else.

  • Professional

    This is the second kit I've purchased from g-volt must say these guys are such a professional outfit. Will be using them for all my conversions in the future. Great work guys

  • Came next day

    Couldn't believe how quick it was delivered driver was very polite this is my second purchase from gvolt and I highly recommend this company to everyone thanks gvolt

  • Great product

    Great product and service snd super fast delivery! Will use again! Customer service is outstanding if you run into a problem

  • Excellent

    I ordered the 27 inch 1500 watt kit, fitted to a boardman hybrid bike .Rides really well 35mph on the flat 22mph on a steep hill Excellent.

  • Absolutely fantastic

    Absolutely fantastic, very fast delivery. This is not my first purchase from G-VOLT... and it's also not my last.. I'll be back, thanks again.

  • Most helpful 

    Probably the most helpful company I’ve ever brought stuff of would definitely recommend


Why not speak to the experts & find out which option is best for you.


Why not speak to the experts & find out which option is best for you.