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How we value kit

GivEnergy battery price, and what decides used value

Every GivEnergy battery price we give is worked out for one pack and sent to you as a written offer. We don't publish a price list, because the figure comes from your own pack. Its generation and size set where the figure starts, and its health moves it most from there.

Free collection, mainland England and Wales Disconnection included Written offer, no obligation We read the pack's own data

An independent buyer. Not affiliated with, or endorsed by, GivEnergy, Tesla or any other manufacturer.

Drawn to the same scale. Giv-Bat 9.5 (Gen 3), 576 mm, 85 kg; Giv-Bat 5.2 (Gen 1), 515 mm, 63 kg; Giv-Bat 2.6 (Gen 1), 299 mm, 35.5 kg.0250500mm9.5 Gen 3576 mm · 85 kg5.2515 mm · 63 kg2.6299 mm · 35.5 kg
No price list

Why each pack gets a figure of its own

Two packs with the same model code can have had very different lives. One spent its life in a cool garage, charging gently, and still holds almost everything it held when new. The other hung on a south-facing wall, worked hard every day and has lost a fair bit.

So the figure comes from your pack, from what you tell us on the form and the photos you send, and it reaches you in writing, as an offer that lists every pack it covers.

Once we've sent it, the offer stands for 7 days.

If you accept it, we pay that amount by bank transfer on collection day, before we leave.

What we look at

The six things that set the figure

State of health and cycle count matter most. Generation and size come next, and the other three move it up or down.

State of health

The battery management system records how much of its original capacity is left. For most packs it's the figure that matters most.

Cycle count

A high count is fine if the pack's health is good.

Generation and size

A 9.5 kWh Gen 3 pack is worth more than a 2.6 Gen 1. The rating label tells us which you have.

Cell balance

How closely the cells match. If they're far apart, the pack needs work before anyone can use it again.

A matched set

Packs of one generation that have run together are more useful to the next owner than odd ones.

Where it's been fitted

A garage or a loft is kinder than an outside wall. If the terminals or casing are weathered, say so on the form.

The rating label settles generation and size in one photo. If it has worn off, measure the pack's height instead, because no two packs stand at the same height.

If you've seen a health figure for the pack, put it on the form, even a rough one.

If you haven't, we'll read it ourselves before we collect a working pack.

The remote check that reads it also reads each cell and the pack's cycle count, so you don't need to look those up.

A mixed set needs battery firmware from May 2024 or later, and GivEnergy's documents differ on which pack leads it, so it's more work for the next installer than a set of one generation.

Weather shows on the terminals and the case. A close photo of each tells us more than a description can.

What counts towards a used solar battery's value differs from one make we buy to the next.

Damage

A swollen, cracked or scorched pack

If a pack is swollen, cracked, leaking or scorched, please don't move it or open it.

The form asks about damage. If you answer yes or not sure, we'll email you about it before we arrange anything else.

Tell us what you can see, and add a photo if you can take one without touching the pack.

By generation

Every low-voltage GivEnergy pack we buy

ModelGenerationHeightWeightDepth of discharge
Giv-Bat 2.6 (Gen 1)Gen 1299 mm35.5 kg80%
Giv-Bat 5.2 (Gen 1)Gen 1515 mm63 kg80%
Giv-Bat 8.2 (Gen 1)Gen 1669 mm103 kg100%
Giv-Bat 9.5 (Gen 2)Gen 2800 mm110 kg100%
Giv-Bat 5.12 (Gen 3)Gen 3338 mm48 kg100%
Giv-Bat 9.5 (Gen 3)Gen 3576 mm85 kg100%
From GivEnergy's datasheets, oldest generation first. Older GivEnergy training manuals put the 2.6 at 30 kg. Older GivEnergy documents put the 5.2 at 54 kg and 205 mm deep. For the 8.2, the Gen 1 manual and the 2022 sheet say 94 kg, and that sheet makes it 620 mm tall. The 2022 sheet has the 9.5 Gen 2 at 223 mm deep. The first 5.12 Gen 3 datasheet (V1.0) says 50 kg.

Telling GivEnergy batteries apart mostly comes down to height and how the pack connects.

The two 9.5 kWh packs hold the same, but the Gen 2 stands 224 mm taller than the Gen 3.

The battery's firmware version in the app points to its generation too.

For an accurate offer

What to send us with the form

Photos help more than anything you can type. The ones we use most are the whole unit from the front, a close-up of its rating label, and a screen capture of the battery page in the app, if there is one.

Say how many packs you have and which of them have run together. With more than one pack, a photo of each label lets us price each one rather than guess. If you know when it was fitted, or you've noted a health figure or a fault code, put it in the notes.

Before we collect

A working pack is checked before it leaves your wall

The remote check comes after the written offer and before we collect. If the pack's figures aren't what you told us, we may requote or withdraw our offer, and you're free to walk away.

Selling or listing

Selling it to us or listing it yourself

You'll usually get more if you sell it privately, but we make it easy.

Selling to usListing it yourselfRecycling
What you'll usually get Less than a private sale Usually the most Usually the least
Who puts a figure on itWe do, in a written offerWhoever bids mostThe recycler
What the figure rests on Its generation, size and health What the buyer can see Often its weight
Getting it off the wall Our engineer disconnects it Yours to arrange Yours to arrange
How we see it. Listing sites and recyclers each work differently.
Figures online

We don't go by prices on listings or forums

You'll find figures for used GivEnergy packs on listing sites and forums. We don't price from them and we don't repeat them here, because each one was for a particular pack on a particular day. A listing price is only what the seller asked. It won't tell you how healthy that pack was, or whether it ever sold.

Looking to buy one?

Nothing here is for sale

If you came here for a second hand GivEnergy battery to buy, we can't help. We only buy, so there's no shop and no stock list.

The administration

A warranty isn't needed to sell us a pack

GivEnergy Ltd's administration hasn't changed how we value a pack. We look at the same things on every one.

Request a written offer

Tell us about your GivEnergy battery

Fill in what you know, and the figure comes back by email.

How much is a GivEnergy battery?

We don't publish a price list. We buy used GivEnergy batteries and price each pack on its generation and size, how much capacity it has kept, its cycle count, how closely its cells match, whether it's one of a matched set, and where it's been fitted. Send the form for a written offer on yours.

Please don't take it off the wall yourself

A low-voltage GivEnergy pack runs at 51.2 V DC with real fault current behind it. A high-voltage stack runs well above that, and an All in One at around 307 V. Our engineer isolates the system before anything is moved. If your installer has already disconnected it, say so on the form.

Your written offer

Free collection, mainland England and Wales · Disconnection included · Written offer, no obligation · Reply within 48 hours

Step 1 of 4

What are you selling?

GivEnergy kit only.

You can sell part of a system and keep the rest.

Questions

GivEnergy battery value

Why don't you publish a GivEnergy battery price list?

We don't publish a price list, because two GivEnergy batteries of the same model can differ a lot in health, cycle count and cell balance. We make a written offer on each pack instead, from its own figures.

Does a second hand GivEnergy battery hold its value?

It depends on how much of its capacity it has kept. Its battery management system keeps a figure for that, and once we know the pack's generation and size, that figure moves an offer more than anything else. A high cycle count is fine while the pack's health is good. A pack that has lost capacity, or whose cells have drifted apart, is worth less.

How do I check my GivEnergy battery's health?

If it's working and you're selling it to us, we check it for you before we collect. After your written offer, we email you a link to a small app. You run it on a computer on the same network as your system, and we run a state-of-charge calibration from our end. It reads every cell and tells us how much capacity the battery still holds and how many cycles it's done.

Is a Gen 3 GivEnergy battery worth more than a Gen 1?

Usually, yes. Generation and size set where an offer starts, and a Gen 3 pack starts above a Gen 1 pack of about the same size. The Gen 3 packs hold 5.12 and 9.5 kWh, and the Gen 1 packs 2.6, 5.2 and 8.2 kWh. From there it's each pack's own health and cycle count.

Request an offer