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Posted 14 September 2023

Givenergy 9.5kwh Li-ion Battery - Gen 2

£99 ·
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Been watching the price of batterys to add to my solar system and this looks to be an amazing price.

You will need it to be installed by a Givenergy registered installer to get the new 12 year warranty.


  • Plug & play functionality
  • Fully recyclable at end of life
  • Robust carry handles to aid with lifting and installation
  • Remote firmware upgrades
  • IP65 Rated
  • Retro-fit compatible

  • Dual BMS system allowing greater control and functionality
  • Scalable battery packs - up to 5 per inverter in 2019
  • 0.5C-1C charge and discharge rate
  • Retrofit compatible
  • 157Wh per Kg +/- 5%
Please note this battery does not contain cables.
Wil-Lec Group More details at
Community Updates
Edited by a community support team member, 15 September 2023
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  1. Brosh's avatar
    Not gonna do a full review, but I recently (2 months ago) had a GivEnergy dual 9.5kWh battery & 5kW hybrid inverter installed, along side 5kWp of solar. For the most part it's pretty good, but it's not been without issues. On the good side, it mostly just works, ticking over harvesting my solar energy and pumping it back out overnight.

    So far, the problems I've had are:

    * We have a home backup system, which isn't working properly (regular power outages on the backed up sockets)
    * The battery spent 12 hours yesterday charging from the grid at 300 watts without being told to do so
    * The app to control everything is a little bit crap - it fundamentally works, most of the time, but the scheduled charge/discharge stuff leaves a lot to be desired.

    Oh, fair warning, these things are extremely heavy.

    Happy to field questions if anyone has any, though. (edited)
    originalli's avatar
    I have no iasues. Automation through home assistant is working like a breeze. Good price! I think I paid way more for it!

    Got it in the attic with help of 4 other people and thick rope
  2. Infiltrator's avatar
    Have solar for house but can't justify a battery, getting 15p from Octopus for export and importing on the tracker tariff at 17p or 18p, a battery doesn't make financial sense for us at current tariffs. But good to see battery prices coming down as things can/will change! (edited)
    qprfanbideford's avatar
    I had solar for 7 years before I decided to get a battery. Before the battery install, from April to September I would feed back loads of energy to the grid - even after charging my EV. Now I feed back hardly anything. Almost every drop of solar is put into the battery or the EV

    If its cloudy / little solar production then I top up at night during Octopus Go cheap rate. Since December 22 until August 23 the monthly cost of my electricity have been between 9p and 12p per kw.

    Now with Octopus Intelligent I can if I wish fill up the battery for 7.5p per kw in the night and then during the day export it back to Octopus at 15p. Or as others have said use Flux and export at an even higher rate.

    I wish I hadnt waited 7 years to get a battery - then again the battery systems today are far superir to the ones available many year ago

    This is very tempting to enhance my existing system
  3. Hubert_U's avatar
    Worth adding that GivEnergy recently extended their warranty so now all their inverters and battery storage have 12 years warranty:

    User346's avatar
    I haven't checked the latest Ts and Cs for them - so far the warranty wasn't worth the paper is was written on - warranty offered to buy a new battery with a small discount.
  4. DryUrEyesMate's avatar
    Never skimp on batteries imo, you get what you pay for.
    sonosppp's avatar
    Givenergy batteries are fantastic.
  5. cheesebrain's avatar
    Aren’t people scared that these might go boom and burn your house down ?
    sonosppp's avatar
    Arent people scared their phone might explode and burn the house down?

    Arent people scared their washing machine might explode and burn the house down?

    Logic is the same, its minimal risk.
  6. PGs_Tips's avatar
    For anyone in the UK considering household solar or batteries, worth joining the Solar & battery UK FB group for hints and tips on sizing, installer selection and feedback from other consumers

  7. Tryin2B_Green's avatar
    Great price but myself l would go for Pylontec batteries as they are a similar price and once you have had the system installed it's a simple DIY upgrade to add additional batteries to your detup
    Supersaint06's avatar
    I agree. The 4.8kwh us5000 can be had for £1375 and you can plug and play as many as 8 i believe. Really tempted to buy another for cheap overnight charging with the diminishing winter sun approaching
  8. erroll's avatar
    Newbie question on Solar - what is the best VfM option(s) for solar installations (with or without batteries) and is it worth it for a less than average (family) user (with no EV’s)?

    Currently on the Octopus tracker and summer usage is around £55 elec and £15 gas (inc standing charges).

    Thanks in advance
    signnamehere's avatar
    Had my solar fitted larger array 19 panels and 10kwh battery about 2.5 months ago.
    Have used about 8kwh from the grid and 0 gas in that time so I'm defo all for it. 2 adults 1 baby no ev.

    Not worth a battery on its own imo the price to install and purchase and then wear and tear Vs normal electricity won't pay off long term.

    Same as solar on its own isn't as useful. Generate in day when not in and then pull from grid at 2 to 3 times when you exported at in evening.

    If going for an install though get as many panels as possible as they are cheap compared and you pay a lot for scaffolding to then add more later on.
  9. azl's avatar
    How much would install cost approx from GE?

    Anyone got diagram of how this all links?
    bluetang's avatar
    You should contact an installer who would come round and and do a site survey first and give you a price. The survey should be free.

    Tech details of the battery can be seen givenergy.co.uk/wp-…pdf

    You can find a GE installer via their website givenergy.co.uk/

    However check out the MCS website first not only for MCS registered installers but other useful consumer info - mcscertified.com/ (edited)
  10. WhaleTrain's avatar
    Had to double take then, I thought Givenchy had gone into Batteries
  11. statistic's avatar
    VAT exempt if purchased with a solar system, ie at the same time as panels /inverter.
  12. In2branding's avatar
    Not sure on the Government rules but can you add one solar panel and define it as a solar solution and therefore save the VAT on the whole order?
    originalli's avatar
    No vat on the solar system but o believe batteries are with tax tho
  13. jamgin's avatar
    Excellent thread.
    Helpful and informative comments from people who know what they are talking about.
    john_n3MU's avatar
    much like marking your own homework.............
  14. Pulpdiction's avatar
    Is this just the battery, thought you had to connect to a givenergy inverter to get this working, so you need that as well?
    bluetang's avatar
  15. reddeviluk's avatar
    Will this work with a Steam Deck.....
  16. bazray's avatar
    Heat, If you fancy doing a diy battery backup fogstar sell Seplos Mason kits and lifpo4 cells. They have 15.6kwh starting from £2k with Envision grade B cells, or 14.3kwh Eve grade B cells.

    EVE categorised Grade B cells prevent them from being used in electric vehicle applications, but they are an excellent fit for energy storage and solar applications. Grade B cells have the same capacity and internal resistance as Grade A cells.

    Obviously not plug and play like Givenergy etc... but might be suitable for some.


    Fogstar (edited)
    hughwi's avatar
    Is it possible to go down this route as an alternative battery backup system without the solar PV input? So effectively just buy the battery kit and a compatible inverter and away you go? Seems really good value!
  17. n0chex's avatar
    All the batteries mentioned above are still VERY dangerous hence the reason I did some research and came across a Brand New Technology in solar home batteries.

    • Best blade LFP battery and CTP technology is the ONLY way to go now moving forward especially if you want it in a loft.

      My install consists of 13x 400W Risen Panels, LXP Hybrid 3-6k Invertor plus a 9.4kW Hanchu ESS Battery.
    • I am currently with Octopus tracker as I do not have an EV to go onto a cheap overnight tariff but not having the system installed long I want to see how it performs over winter also before I move away from the tracker tariff as it takes 9 months to re join it.

    51001490-RvU1k.jpg (edited)
    Supersaint06's avatar
    I think the improved safety of blade design refers to EV applications where LFP is not commonly used due to lower energy density.

    I dont think there is any evidence they are safer in homestorage batteries. They are the same battery chemistry as the 'VERY dangerous' batteries above just packaged differently so they have more strength.

    LFP batteries in general are known for bettery high tmemperature safety.

    But happy to see your 'research' if you disagree (edited)
  18. n0chex's avatar
    Yes I am 100% happy with my new purchase and feel 100% more safer than my older 3.2Kw storage.
    Also for me it was the weight,smaller size and performance.

    In summary, LFP batteries are generally considered safer than some other lithium-ion battery chemistries due to their thermal and chemical stability.

    Thanks for your input though appreciated.
  19. RukasuMi's avatar
    wow thats like 2 days worth of power for 3 grand
    fishmaster's avatar
    Study the EVMan video I posted in another comment on this deal thread to see how you can now charge up cheap at night and sell back to the grid for profit in the daytime.
  20. skip112's avatar
    Can anyone offer advice on how to do a solar system install. Im a roofer by background
    originalli's avatar
    You'd need electrician ideally giv energy trained I can recommend someone in north of England
  21. Thoughtful's avatar
    I understand people have other reasons to install these aside from cost, but I couldn't resists a bit of maths.

    At 32p per KWh this requires 11 000 KWh to pay for itself.

    Assuming full cycles that is 1150 charge discharges. LiPo batteries have 3000 - 5000 life cycles so should be able to manage this easily ecotreelithium.co.uk/new…st/

    However the price quoted here is misleading as there is a £99 delivery fee, and it will need to be fitted by someone who is going to want paying.

    So the maths probably does add up, especially as energy prices are unlikely to fall much but it's probably going to take at least 5 years to break even depending on useage.
    cabstar's avatar
    Like I included in the post or did you not see the little lorry?50989841-2RJ9A.jpg
  22. gadgetmonkey007's avatar
    I recently read that Lithium Ion based battery cells had fallen massively in recent years to around £130 per kWh. So this battery cell value may be around £1425. I guess the rest of the cost price is due to companies have R&D, QA costs etc & have to package them in a box with a BMS. Probably not bad value to add to an existing system, but not much use without an inverter and some solar. (edited)
    fishmaster's avatar
    The EVMan video I posted in another comment on this thread (check this deal thread or my comment history) shows that actually you don't need Solar currently as long as you have the right tariff, because you can charge up cheap at night then sell back to the grid for more in the day for any excess power you have.
  23. Krystufer's avatar
    Seems like a really good deal, my house isn’t really well situated for solar panels, so I thought I would do the “other people solar” technique, use a battery to top up on cheap rate electric, use this during the peak times. I guess this kind of battery would be too big for that kind of use case, does anyone here have any experience of a non-solar battery set up?
    zombie_unchained's avatar
    Have you calculated how much time it will take to recover you invested on battery ?
  24. bluetang's avatar
    We had this installed last year. We already have solar. We also had to have the inverter installed (no mention of inverter in this deal). The battery has been fantastic. As someone said, it is heavy. We have ours installed outside. No issues.
    Also, you need to note that you MUST have GivenEnergy cables (not included in this deal). You can’t use any others. I know this because we had a long wait for them after everything else was installed and not only could our installer not use anything else but the warranty would have been invalid. Not to mention potential fire risk.
    This battery, once coupled and running with the inverter can be monitored via apps (a superb online set up where you can delve into all sorts of present and historic data to the nth degree, and also a smaller app for more basic monitoring.
  25. gooner786's avatar
    I have existing solar panels with a third party company they originally fitted this as part of the FiT about 10 years ago.

    I am wanting to install a battery to protect myself from electricity price hikes however upon contacting them, they said that i am not able to install a battery and this would breach the contract.

    Original contract was not made with me, as i inherited the panels after i bought the house two years ago.

    Anyone else with a similar situation or has anyone else got any advice for me?

    J1135's avatar
    ooh that an interesting one!

    let us know how you get on, if it was installed as part of the fit then effectively if you charge the battery then your taking the energy that they would have exported.

    however if you then feed back into the gid when the price is higher where does the increase go?

    I mean if they're being difficult you could always tell them that you need access to your roof to retile it n have them come along and remove the panels I think.

    If be having a look over the contract as well, quite rightly as you said it wasn't with you. but the company probably now "own" the airspace above your property, have you looked on land registry?
  26. User346's avatar
    I have installed about 20 GIVENERGY systems. In my opinion it is the worst battery system out there. I would say that about 40-50% had some problems - we had broken inverters shipped, dead batteries, broken BMS. Their support is really bad - customer have to wait about a month for their technician to come out and look at it even though we had performed all the tests they ask for and they agree that it's a problem with their equipment.
    They have still unresolved issue with battery calibration which in some occasions only allows to use 50% of battery capacity - they know it but still keep selling those products.
    We have stopped installing them.
    They might be cheap, but in this case you get what you pay for.

    In comparison - batteries in general are really good and with other manufacturers we experience almost no problems or problems that can be solved withing few days.
    shambia's avatar
    Just out of curiosity, what is your opinion of solaredge?
  27. stevenfox's avatar
    For a second there I thought this said Givenchy

    “We’ve decided to diversify our portfolio and battery tech is the new fashion”
  28. greysofa's avatar
    I've got one of these and it's ace. Installed and has just worked since day one. No issues, and saving a fortune on energy bills. Plus unlike a lot of other battery kits, the app is dead easy to use and looks modern. I'm chuffed with this, and this is a good price. Heat added.
  29. kamz58's avatar
    Are these better than the puredrive batteries?
  30. Ozzark3's avatar
    I paid around £4000 for a 4.8 kwh battery from Moixa 3 years ago (it still sells for £4,495 in the website). At that time, it was one of the few and cheapest options. Glad to see battery prices going down. I wish I had that then. If Moixa prices goes down with competitive pressure, I look forward to adding another 4kw unit to increase my capacity. (edited)
  31. msanman's avatar
    Has anyone got or would recommend Greenlinx batteries or Growatt over Pylontech please ? I already have a 4kw Solar System and retro fitting battery storage to a new LuxPower ACS3600 AC coupled charger. (edited)
    MajicMOLE's avatar
    I have 4 x 3.3 Greenlinx batts with my Lux inverter - they’ve been faultless
  32. redband's avatar
    Installation RequirementsInstallation of all GivEnergy equipment must be carried out by a GivEnergy approved installer.
    Anyone know what is the minimum spacing between 2 of these? Would consider getting one of these installed with solar and then add second later myself.
    Is the 12 year warranty out of the window if not installed by a GE approved installer?
  33. rendeverance's avatar
    Building a cabin in the garden as a workshop and gaming space. Thinking of something like this, an inverter, and covering the roof in solar panels instead of exporting from the house, which is absolutely not straightforward and have been quoted a fair bit and need permissions etc to do if I went that route (would rather not).

    It's a large cabin 24m^2... wondering how much power one would generate with a 4+kw solar setup in winter on the west coast of Scotland (garden is a suntrap most of the day when there is sun without shadows over the area I'm building), anyone here up this way who might advise on their residential setup? I'm hoping to run a server at 100w idle 24/7 and occasional tool use or higher consumption when gaming occasionally. I could theoretically top up on the odd occasion via 13A if that's possible. (edited)
  34. n0chex's avatar
    That's why Hanchu-ess are the first in the world to bring this new technology to Home solar batteries along with it's built in aerosol fire-protection system.

    I will agree ALL lithium batteries are dangerous but some much more than others.

    A few clips of the difference below:

    Nail penertration test on both batteries here - > Facebook

    Supersaint06's avatar
    Yup these are all manufacturer claims of improved safety but no evidence of such. No independent reviews or links. They havn't even done a comparison with other LFP batteries (they may have but not published i guess if there was no difference)

    They show videos of a non-LFP battery catching fire when a massive drill piece is put through it and a blade battery with LFP not catching fire. There also a video of a blade battery having a larger than industry standard required nail it it (20mm vs 8mm). Nothing to prove they are less likely to catch fire without being heavily damaged. Useful though i guess if you want to store your loaded nail guns next to your batteries.

    Many manufacters originally put fire-extenquisher systems in the batteries but it was found a one time extinquisher was insufficient to stop a cell fault related fire so stopped putting them in. I guess if the whole loft is already on fire it might help but then all LFP batteries use a non-flammable electrolyte anyway.

    If these are the right batteries for you at the right price go for it. But don't buy them as the 'ONLY way to go now moving forward' with completely unproven claims of increased safety vs other LFP home storage batteries.
  35. Eddie's avatar
    how many amp hours is this?
    originalli's avatar
    Measured in kWh with 4% reserve.
    Amper hours is irrelevant due to variable low voltage .
  36. fishmaster's avatar
    Any thoughts on EVMan's recent video that Batteries without Solar make more sense now due to the overnight tariff costs meaning you can charge your batteries in the day and sell excess back to the grid at a profit >

    User346's avatar
    As long as difference between night/day tariff is high enough, it works alright!
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