Sell your GivEnergy 5.12 Gen 3 battery
Owners often call the GivEnergy 5.12 Gen 3 battery a "Gen 3 5.2". It holds 5.12 kWh and is the smaller of GivEnergy's two low-voltage Gen 3 packs, 338 mm tall and 48 kg. List it on the form, with any other packs you're selling, to get a written offer. Once you've said yes, our engineer comes to disconnect it, and collection in mainland England and Wales costs you nothing.
An independent buyer. Not affiliated with, or endorsed by, GivEnergy, Tesla or any other manufacturer.
- Capacity
- 5.12 kWh
- Voltage
- 51.2 V
- Height
- 338 mm
- Weight
- 48 kg
- Depth of discharge
- 100%
- Packs per inverter
- Up to 5
Source: GivEnergy, Giv-Bat 5.12 (Gen 3) datasheet v2.0.
How to tell a 5.12 Gen 3 from a 5.2
- 338 mm tall and about 48 kg.
- Plug-in sockets marked A and B, a pre-installed isolator and a USB port for firmware.
- Battery firmware in the app starts 40.
The taller pack behind it is a 5.2, a Gen 1 battery and a different pack altogether. It stands 515 mm, and it has a separate DC breaker, fixed to the wall beside the pack.
GivEnergy's V1.0 datasheet for the 5.12 is dated March 2024 and gave it 50 kg. The current datasheet and its installation manual both say 48 kg, so that's the weight we use.
Inverters a 5.12 Gen 3 runs on
| Inverter | Works with a 5.12 Gen 3? | Notes |
|---|---|---|
| Hybrid inverter (Gen 1) | Yes | Lug-to-plug cable. |
| Hybrid inverter (Gen 2) | Yes | Lug-to-plug cable. |
| Hybrid inverter (Gen 3) | Yes | Plug-to-plug cable. |
| AC Coupled inverter 3.0 kW | Yes | |
| All in One | No | GivEnergy doesn't list it. The All in One runs its own 307 V battery. |
| All in One 2 | No | GivEnergy doesn't list it. The All in One 2 runs its own 307 V battery. |
Beside an 8.2 or a 9.5 Gen 2 it's the smaller pack, yet its own manual makes it the master when generations are mixed, and a later firmware note disagrees.
Where a 5.12 Gen 3's offer comes from
We don't publish a price list. What matters most is the pack's cycle count and health, and being Gen 3 counts in its favour.
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.
If the app shows the pack's health and cycle count, attach a screenshot of that screen.
Put your 5.12 Gen 3 on the form
The form opens with "Batteries" chosen, and each pack row starts as a "5.12 G3". Change a row if that pack is a different model.
What's a used GivEnergy 5.12 Gen 3 battery worth?
Its cycle count and its state of health matter most, and the pack's battery management system records both. Cell balance and where it's fitted come after that. We don't publish a price list. Each 5.12 Gen 3 is priced from its own figures, and you get the written offer by email. A working 5.12 Gen 3 gets a remote check of those figures before we collect it.
Before we collect
- For a working battery, we email you a link to a small app. You run it on a computer on the same network as your system.
- Then we run a state-of-charge calibration from our end. It reads each cell and tells us the battery's state of health and cycle count.
- If the kit differs from your description, on the check or on the day, we may requote or withdraw our offer, and you're free to walk away at no cost.
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
The bigger Gen 3 pack, and the 5.2
Selling a 5.12 Gen 3
Is the GivEnergy 5.12 kWh the same as a Gen 3 5.2?
Yes. GivEnergy never listed a Gen 3 pack of 5.2 kWh, so a "Gen 3 5.2" is almost always this 5.12 kWh pack. The 5.2 kWh pack is Gen 1, and we buy that one as well.
Can I sell a 5.12 and keep my 9.5 Gen 3?
Yes. Selling the 5.12 Gen 3 leaves a Gen 3 pack behind, and a 9.5 Gen 3 runs on every GivEnergy inverter the 5.12 Gen 3 runs on. The rules for mixed generations only matter where Gen 3 packs sit with older ones.
How do I tell a 5.12 from a 9.5 Gen 3?
Measure it. A 5.12 Gen 3 stands 338 mm tall and weighs about 48 kg, against 85 kg and 576 mm tall for a 9.5 Gen 3. Both have the Gen 3 plug-in sockets, so if you can't measure, read the label. The smaller pack's model code is GIV-BAT-5.12-G3.