Warranty comparison
EG4 vs Sol-Ark
The same four questions asked of both: how long on parts, how long on labour, what has to be registered, and what has to stay true.
Checked 16 August 2026
On warranty terms
Line ball
Neither asks meaningfully less than the other.
EG4 and Sol-Ark land in much the same place on warranty terms, and the choice comes down to what each one needs from you rather than to the headline number.
Side by side
| EG4 | Sol-Ark | |
|---|---|---|
Parts cover | 10 years | 10 years |
Labour cover | None | None |
Registration window | 1 year | None |
Conditions to keep the term | 1 | 1 |
Who registers | Register | Register |
Product lines | 2 | 1 |
Checked | 2026-08-16 | 2026-08-16 |
What separates them
- Neither pays toward labour on the lines in this catalogue, so the truck roll is yours either way.
- Both carry 10 years on parts, so the parts term is not the thing that separates them.
EG4
Checked 16 August 2026
EG4's current inverters and batteries carry 10 year terms. EG4 asks for registration within the first year of purchase, with proof of purchase from an authorised distributor accepted as the fallback. The window is soft if the paperwork is kept and worthless if it is not.
Either register the unit with EG4 inside the first year or keep proof of purchase from an authorized distributor with the job; one of the two must hold
Sol-Ark
Checked 16 August 2026
Sol-Ark's 10 year limited warranty runs from initial purchase or receipt by the end user, whichever is later, so the purchase paperwork belongs with the job. Registration guidelines exist, and owner installs carry extra hold harmless conditions, which makes recording who installed the unit part of the warranty record.
Confirm the warranty registration was completed with Sol-Ark and note who installed it: coverage terms differ for professional versus owner installs
Where this came from
Checked against
Checked 16 August 2026
Warranty terms change and differ by country. This is a reading of the manufacturer's published document on the date shown, not legal advice, and not a substitute for the document that applies to the model you installed.
The full references
Claim Timer already holds these terms
One record per piece of equipment, with the serial, the nameplate photo and each brand's conditions on it. Put your next install in and the claim is built before the part fails.