The JAC 510 900mAh Twin Pack in black
The JAC 510 900mAh Twin Pack in stainless steel
Stainless steel version
The black and stainless steel versions

Further information

JAC 510 Twist 900mAh Twin Battery Pack (Free Charger and Case)

Availability: Out of stock

As low as: £7.99

Price as configured: £7.99

FREE DELIVERY on all UK orders over £40

8 Reviews 8
  • Description
    • Offering the greatest capacity of any of our variable voltage models, JAC 510 Twist 900mAh batteries clock in at 112mm.
    • To adjust the voltage simply twist the disc at the bottom of the battery to set the voltage from between 3.3-4.8v.
    • Compatible with 510 tanks and is supplied with a 60 day warranty.

    JAC 510 Twist batteries require a dedicated 4.2v charger, which you'll receive when purchasing this twin pack!

    JAC 510 Twist Battery Features

    • 510 connector
    • eGo thread
    • Variable voltage between 3.3-4.8v
    • 5 click locking mechanism
    • 10 second auto cut-off
  • Delivery

    Coronavirus Update

    Please note, due to the ongoing Covid-19 outbreak, Royal Mail are advising customers to be prepared for instances of disruption and delay in the network. While we are operating as normal and aim to ship your order as quickly as possible, we unfortunately have no control over localised postal delays and therefore advise customers to order in plenty of time to allow for such delays in service.

    Deliveries may arrive later than stated on the site, and outwith the usual delivery timescales. Unfortunately we will not be able to reimburse postage costs in such instances during this period, and the normal timescales that dictate when Royal Mail will consider a parcel as lost are suspended due to significant disruption in the postal network and at Customs in various territories around the world. We hope our customers understand that these are unprecedented times, and while we and Royal Mail aim to meet regular timescales they can’t be guaranteed.

    POPULAR TRACKED: (3 to 5 working days) *Delays possible

    RAPID TRACKED: (1 to 2 working days) *Delays possible

    STANDARD NON-TRACKED: (3 to 5 working days)*Delays possible

    ROYAL MAIL 1ST CLASS (NON-TRACKED): (1 to 2 working days)*Delays possible

    ROYAL MAIL 2ND CLASS (NON-TRACKED): (2 to 3 working days) *Delays possible

    Please note, orders placed after 1pm on Friday will ship Monday morning. We try to ship everything ordered before 1pm on the same day, however this is not always guaranteed.

    More info on UK and international deliveries

  • Returns

    Coronavirus Update 05/01

    For the next wee while, there will be one area where we shall have to make some changes to how we work, and that is our approach to customer returns.

    We’ll do our utmost to diagnose and troubleshoot problems remotely and ask for your assistance in providing photographs or videos to help to do so. This will ensure that where required we can continue to issue replacements. Should we need to get your device back for assessment or repair, due to the current lockdown regulations we will have to ask you to hold on to the item until we are allowed to return to head office.

    Any 14 day returns (due to a change of mind etc) will be authorised as normal, but please allow up to an additional week for these to be processed.

    None of this affects your statutory rights, or our 14 day no quibble returns policy, but we ask customers to be patient while we do our best to process things as quickly as possible.

    14 Day Money Back Guarantee and Warranty

    More information on our returns policy

Availability: Out of stock

As low as: £7.99

Customer Reviews for the JAC 510 Twist 900mAh Twin Battery Pack (Free Charger and Case)

  • Not bad - by caroline, 12 September 2016
    Got these when I couldn't get the 810 anymore. I can't get on with them. So I have now ordered the b series. These are always leaking and the battery's don't last old ones lasted much longer.
  • Brilliant - by Georgina, 25 April 2015
    I have used the V31 Batteries in the past, but I wanted something that I would be able to use with other items. With the 510 connection, these e-cigs are easy to personalise. I couldn't reccomend them highly enough. Long battery life and reliable.
  • Premium Quality Kit - by Darren, 22 November 2014
    I have used other cheaper 510/ego products before and whist this product is similar everything feels a lot more premium.

    I brought the stainless steel with the optional mini protank 3 (in which i highly recommend doing for the extra £4)

    The batteries like i said are of solid construction and feels really nice in the hand. The 900mah capacity is great and lasts me the whole day (if not longer) so with the 2 batteries in the kit you are never going to be caught without power! The VV option is great if you feel you are not getting the vapor production you like, you can crank the power up a bit and taylor it to your needs. 1 little criticism is the power button is a little small and i would have liked it a bit bigger but it does do the job and its the standard button on most of these type of batteries.

    The Mini Protank 3 is just an awesome tank. The dual coil helps out a lot with the vapor production and the e-jucie tastes great. The tank itself is well constructed as you would expect from KangerTech and you will not have to buy another! just replace the atomizer from time to time.

    If you are just starting out with vaping and are thinking of giving it a serious shot i would recommenced this kit as you will be set up for a long time. In the past i have wasted a lot of money testing out different products, if only i knew what i know now! all you need it a good tank and a good VV battery... This kit delivers just that
  • S solid starter kit, but just starter kit. - by Ronnie, 7 October 2014
    What is bringing my grade down a bit is two things, the tank in general and the black surface in particular.

    Let me just say first though, this vapour system brings the real deal to the table, it performs with highest remarks and it is really reliable, so I think this kit has good value.

    The problem with the tank is that screwing and unscrewing is tedious. It is very easy to tighten it too much and you really don't know when you do. At the same time, you're doing it so liquid won't leak. It would be better to open up the tank for refill on the other side, far from where the battery connect to the tank, but this is almost on the same place without anything helping you to grab on to anything. You just have a glossy metal surface to work with.

    Second think is actually the blank surface in black colour, it doesn't take long until it starts showing scratches.

    This could really need some rework. I might be asking for much here with the color thing, but the screwing/unscrewing really could need a fix, something for your fingers to get a better grip.

    I recommend this starter kit for great value if you can live with the cons. What I did was that I bought extra batteries with a metal surface as well as new tanks, such as the Pro and Pro Air which I have reviewed on their pages.

    JAC Vapour really stands out amongst the competition for this price range.
  • What a difference the "Twist" makes. - by John , 4 October 2014
    This only arrived yesterday and hasn't left my hands since (ok i slept and it did then) I vape UK menthol 18mg and i've been a devout Vgo2 crystal lover since i got one but this 900mAH twist is without question the best vape i've ever had. the 900mah battery isn't as heavy as i thought it would be for it's size but feels solid, the evod2 tank it comes with holds a great amount of juice the drip tip is well fitting and feels good when in the lips, over all the ape from this poduct is excellent not too airy not too gunky(if you know what i mean) and so far there's no sign of liquid on the battery connection and i've been vaping HEAVY!! Can't wait to try it with some new flavours.. Thanks JAC
  • excellent - by mark, 19 September 2014
    Ordered this wed eve arrived fri morn private courier so excellent service.I bought this as a present for my wife who has used cheap rubbish products for years so when this arrived she was immediately amazed at the quality of the whole product.The battery power the speed of charge and its duration was also impressive.I can honestly say like many e-cig users she has a obsession with the strength of the throat hit and was not convinced when i said some people find a 1:5 ohm coil and a 900mh battery turnned on full too much but when she tried it the moment she coughed i knew she'd love it and because it's a variable voltage model it meant she could fine tune it.If you want the best without paying over a £100 this is the one!
  • Amazing - by Nick Parfitt, 6 August 2014
    My twist 510 900mah just arrived after about 24h free delivery. And it's amazing. I ordered the banana milkshake flavor to vape with it and it comes out so smooth and with a lovely warm mass of vapor. If this is what the best has to offer then I'm really impressed. Thanks Jac Vapour! (If I get any problems I will be sure to update and comment on customer service!) :) :)
  • A++++ - by Duncan, 2 August 2014
    Without a doubt one of the best e-cigs on the market today. As of late I bought this along with the Totally Wicked Odyssey VV (a much more expensive product) and I have to say, the Jac 510 is the better e-cig.

    I have been vaping for almost two years now and have tried a good number of different products, and this is what I would recommend to anybody who is thinking of taking up the hobby and cutting the cigs, or a current hobbyist looking for a solid model.

    This pen summates why I love Jac products - it is simple, and damn good at doing what it is designed for. No go faster stripes or wacky light up tanks, this will give you a good solid vape every time you hit that button.

    As with all litium-ion batteries they will decline over time, however these are giving a good 2 days of heavy heavy use right now. I used to have a VGO2 and the batteries there lasted over a year with heavy use, so I have no doubt these ones will too.

    Note to users - sometimes the "turn off" feature can be a little bit picky, but just keep clicking the button until it doesn't light up any more.

    Highly recommended

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