AVILOO vs Altelium: Battery Test vs Battery Warranty

AVILOO vs Altelium

This is a comparison of two products that are often discussed in the same breath but solve different problems.

AVILOO is the world's first independent, TÜV-certified battery diagnostic system for electric vehicles¹, used by 750+ clients across 30+ countries, with 550,000+ tests to date². AVILOO's FLASH Test is also CARA Approved³. It produces an independently certified SoH at the point of sale.

Altelium is a UK-based specialty battery insurance MGA (Managing General Agent), founded 2019 in Buckingham, alumnus of Lloyd's Lab Cohort 9⁴. Altelium's product is an extended battery warranty underwritten by 'A'-rated insurers through the Lloyd's of London market, distributed via the GardX EVerity programme launched 9 November 2024⁵.

These two products serve different needs. Battery health certification answers "what is the condition of this battery now?" Battery warranty answers "what happens if this battery fails later?" A dealer can credibly use both — they don't replace each other.

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At a glance

	AVILOO	Altelium
Product type	Independent battery diagnostic certification	Battery warranty insurance (MGA)
Type of credential	TÜV-certified engineering certification of the testing methodology1; on CARA Europe's approved providers list3	Lloyd's of London market underwriting on the warranty product6
What's certified	The diagnostic methodology that produces the SoH figure	The insurance covering battery degradation and electromechanical failure
Output	Battery health certificate with independently calculated SoH and cell-level severity heatmap7	Warranty eligibility assessment + extended warranty product (1–3 year terms)6
Coverage	95%+ of EVs and PHEVs (FLASH Test)8	Coverage tied to warranty eligibility
Test time (dealer)	3 minutes — independent analysis8	Not stated
Reported scale	550,000+ cumulative tests; over 750 clients across more than 30 countries (Feb 2026)2	UK distribution via GardX dealer network
Major customers	Mercedes-Benz, Hyundai, Cox Automotive, BCA, ADAC, Emil Frey9	GardX EVerity programme5
Geographic scope	Europe, Asia, Australia, USA9	UK

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Different problems, different products

AVILOO is a battery testing technology. The output is an independent technical assessment of battery condition at a point in time, on a TÜV-certified methodology¹. AVILOO's certificate is the kind of evidence a dealer files to demonstrate satisfactory quality at the point of sale.

Altelium is a battery insurance MGA. The output is a warranty product: financial cover if a battery fails within the warranty term. The Lloyd's of London market underwriting is what stands behind any future claim⁶. Altelium's GardX EVerity package bundles the warranty with an internal health assessment used to determine warranty eligibility, but the assessment is not described as an independent diagnostic certification in Altelium's published materials.

The Consumer Rights Act 2015 question is about condition at point of sale. A warranty does not address that question — it transfers future risk. An independently certified diagnostic test does. They live in different parts of a dealer's compliance file.

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Certification approach

AVILOO holds TÜV certification of its testing methodology¹, with TÜV SÜD as a long-standing partner since April 2022¹⁰ and TÜV NORD also a partner¹¹. AVILOO is also on CARA Europe's approved providers list (AVILOO Flash Test)³. TÜV is an independent engineering certification body. CARA Europe is a remarketing-industry approval body.

Altelium carries different kinds of credential. Its core warranty product is underwritten by 'A'-rated insurers through the Lloyd's of London market⁶. Altelium itself is a Lloyd's Lab Cohort 9 alumnus⁴. Lloyd's underwriting is a financial-sector credential — it certifies the insurance backing, not the diagnostic methodology. Altelium does not hold TÜV certification or CARA Approval on its testing methodology — those types of credential do not apply to a warranty product.

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The bottom line

These two products solve different problems and could reasonably be deployed alongside each other rather than instead of each other.

• For evidence of battery condition at point of sale — independently calculated, TÜV-certified, CARA Approved, with cell-level severity heatmap — AVILOO is the system that produces the strongest evidence file.
• For financial cover on a battery that fails after sale — the Altelium warranty, distributed via GardX EVerity, is a legitimate revenue and risk product for dealers who want to bundle warranty coverage into their EV proposition.

Battery Health Check is built on AVILOO. We focus on the diagnostic-evidence side because that is what the Consumer Rights Act question turns on. A warranty product can sit comfortably on top.

Get started with Battery Health Check

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Sources

This page reflects publicly available materials reviewed and captured on 5 May 2026.

1. AVILOO official flyer (PDF) — primary AVILOO marketing.
2. Battery diagnostics specialist Aviloo secures €30 million — electrive.com, 11 February 2026.
3. CARA Europe approved providers list — AVILOO Flash Test on the list.
4. Altelium — Lloyd's Lab alumni profile — Cohort 9 / green insurtech.
5. GardX unveils EVerity — partnership launch announcement, 9 November 2024.
6. Used EV battery health test and warranty service launches — Fleet World.
7. AVILOO launches next-gen battery certificate — electrive.com, 12 June 2025.
8. AVILOO FLASH Test product page — AVILOO's own product specification.
9. AVILOO secures €30 million strategic investment — Batteries News, February 2026.
10. AVILOO: Battery test for professionals — TÜV SÜD's own newsletter, April 2022.
11. AVILOO homepage — partner logo grid.

See also: How It Works | The Certificate | All Providers Compared