Moba vs ClearWatt: Battery Test Comparison

Moba vs ClearWatt

Two battery diagnostic providers active in the UK dealer market, with different methodologies and different forms of trade-association backing.

Moba is a CARA Approved diagnostic platform — its certificate reproduces the manufacturer's BMS-reported SoH¹. Strong DoIP coverage of Chinese brands and a deployment across 200+ Arnold Clark branches².

ClearWatt's Battery Scorecard was launched in December 2025, developed in partnership with the NFDA and aligned with their EV Approved (EVA) scheme³. ClearWatt explicitly markets itself as going "beyond simple state of health (SoH) values taken from the vehicle's battery management system"⁴.

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At a glance

	Moba	ClearWatt
Type of credential	CARA Approved1 (first on the market)	NFDA-aligned (EVA scheme); not on CARA approved list5
SoH calculation	"The SOH provided by the Moba certificate is the same as the manufacturer's SOH"1	OBD data + "further proprietary data"; positions as going "beyond" BMS-reported SoH4
Test method	OBDII (Moba Connect Pro device + app)1	OBD-based Battery Scorecard within Flash Report framework6
Test time	~2 minutes1	~2 minutes (Battery Scorecard)4
Output	Digital certificate with SoH and adjusted autonomies1	A+ to D grading + fault detection3
Cell-level	Limited cell-level data; no heatmap described1	No cell-level heatmap described
Coverage	90%+ of installed base; strong DoIP / Chinese-brand coverage1	UK-focused
Major partnerships	Arnold Clark (200+ branches)2	NFDA member dealers via EVA scheme3
Pricing	Per-test pricing	£39.99 consumer; dealer pricing on request7
Also offered	None	Passive consumer monitoring via Copilot app6
Geographic scope	UK + EU	UK

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Methodology

Moba reads the SoH that the vehicle's Battery Management System produces. CARA's approval is specifically that Moba's certificate reproduces this manufacturer-reported value faithfully¹.

ClearWatt's Battery Scorecard retrieves OBD data and "combines [it] with further proprietary data to generate a report"⁴. ClearWatt markets the product as going "beyond" BMS-reported SoH. The methodology behind the A+ to D grade is proprietary; it has not been independently certified.

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Trade vs trade-association recognition

• Moba: CARA Approved — the only formal CARA approval between these two providers⁵.
• ClearWatt: NFDA partnership, EVA scheme alignment — UK trade-association recognition. ClearWatt is not on CARA Europe's approved providers list⁵.

Both providers' credentials sit within the trade-association space rather than independent engineering certification.

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What neither system provides

Neither Moba nor ClearWatt independently calculates SoH from raw cell-level data; neither ships a cell-level severity heatmap as a standard certificate feature; neither holds TÜV certification of the testing methodology.

For dealers who want an independently calculated SoH with a cell-level severity heatmap, backed by TÜV certification of the testing methodology, with the AVILOO Flash Test also listed on CARA Europe's approved providers list, those features are available from AVILOO — the system Battery Health Check uses⁵.

See how Battery Health Check compares

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Sources

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

1. Moba Certify Pro product page — Moba's own product specification.
2. Arnold Clark partners with battery diagnostics company Moba — Motor Trader, 12 March 2026.
3. ClearWatt launches Battery Scorecard to support used EV sales — GreenFleet, 5 December 2025.
4. ClearWatt launches new Battery Scorecard for used EV assessment — AM Online, December 2025.
5. CARA Europe approved providers list — Moba Certify Pro on the list; ClearWatt not listed.
6. ClearWatt approach — ClearWatt's product overview.
7. ClearWatt EV Health Test — ClearWatt's consumer test page.

See also: AVILOO vs Moba | AVILOO vs ClearWatt | All Providers Compared