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Moba vs ClearWatt: Battery Test Comparison
Compare Moba and ClearWatt EV battery health tests. CARA-approved diagnostics vs OBD-based Battery Scorecard and passive analysis for UK dealers.
Moba vs ClearWatt — How Do They Compare?
Moba and ClearWatt are both active in the UK dealer market for EV battery health testing. Moba delivers data-intensive diagnostics with CARA approval and strong fleet partnerships. ClearWatt now offers both an OBD-based Battery Scorecard (developed with the NFDA) and their original passive monitoring during normal driving.
Here is how they compare for dealers evaluating their options.
Side-by-Side Comparison
| Feature | Moba | ClearWatt |
|---|---|---|
| Test method | OBD-based diagnostic platform | OBD-based Battery Scorecard + passive monitoring |
| Certification | CARA approved | No third-party test certification |
| Accuracy | Not publicly stated | Not publicly stated |
| Test time | Approximately 2 minutes | Approximately 2 minutes (Battery Scorecard) |
| Vehicle coverage | 90%+ fleet compatibility | 90%+ BEVs |
| Cell-level analysis | Limited cell-level data | No — A+ to D grading system |
| Price point | ~€79-89 per test + €150 hardware | £39.99/vehicle (consumer); dealer pricing available |
| Key partnerships | Arnold Clark (200+ branches), 1,500+ clients worldwide | NFDA, Department for Transport |
| Output type | Diagnostic data requiring dealer interpretation | Unvalidated proprietary A+ to D grade |
| Unique advantage | 4 billion+ data points, DoIP coverage | Battery Scorecard (NFDA-developed), patent-pending ClearWatt Engine |
What Each Provider Does Well
Moba's Strengths
Moba brings serious data infrastructure with 4 billion+ data points powering their diagnostic algorithms. CARA approval provides UK industry recognition. The Arnold Clark partnership across 200+ branches demonstrates real-world deployment at scale.
Strong DoIP capability gives Moba an edge with Chinese EV brands entering the UK market. Their Certify Pro product is specifically designed for dealer environments, and their fleet compatibility exceeds 90%.
ClearWatt's Strengths
ClearWatt has expanded significantly since launching their OBD-based Battery Scorecard in December 2025, developed in partnership with the NFDA. This ~2-minute OBD test covers 90%+ of BEVs and gives ClearWatt a direct dealer testing product alongside their original passive monitoring.
Partnerships with both the NFDA and Department for Transport provide strong institutional backing. Their patent-pending ClearWatt Engine continues to power the passive monitoring side, analysing 50+ indicators during normal driving. The A+ to D grading system remains consumer-friendly for the monitoring product, while the Battery Scorecard serves the dealer workflow.
Key Differences
Test approach: Both now offer OBD-based point-in-time testing at similar speeds (~2 minutes). Moba's diagnostic platform is established with CARA approval and 1,500+ clients worldwide. ClearWatt's Battery Scorecard is newer (December 2025) but backed by the NFDA partnership. ClearWatt also retains passive monitoring as a second mode.
Dealer market position: Moba has deep dealer channel presence through Arnold Clark (200+ branches) and per-test pricing from ~€79-89 plus €150 for the Moba Toolbox hardware. ClearWatt has moved into the dealer market through the NFDA, with consumer pricing at £39.99/vehicle and dealer pricing available. Both are accessible to individual dealers as well as networks.
Data approach: Moba's 4 billion+ data points represent historical diagnostic data from across their network. ClearWatt's 50+ indicators represent the breadth of metrics they analyse per vehicle. Different approaches to achieving diagnostic confidence.
Output: Moba produces diagnostic reports suitable for trade use. ClearWatt produces both a Battery Scorecard report (from OBD testing) and the A+ to D grade (from passive monitoring). For buyer-facing certification, neither format carries the weight of an independently TUV-certified health certificate. Both outputs present data or grades without an independently validated interpretation, leaving the dealer to draw — and defend — their own conclusion about battery condition.
What Neither Provider Offers
Both Moba and ClearWatt share limitations when measured against the highest market standard:
- No TUV certification — Moba has CARA approval; ClearWatt has no third-party test certification. Neither has TUV certification
- No verified accuracy figure — Neither publishes validated accuracy tolerances
- No comprehensive cell-level heatmap — Neither produces individual cell condition maps with severity indicators
- No energy-based SoH — Neither uses an energy-based State of Health methodology
- No independently interpreted output — Moba presents diagnostic data requiring dealer interpretation. ClearWatt's A+ to D grade simplifies the output, but the grading methodology has not been independently validated
For dealers who need independently certified, cell-level battery health evidence, Battery Health Check powered by AVILOO offers the world's first dual TUV-certified test with +/-3% verified accuracy and full cell-level analysis in 3 minutes.
The Bottom Line
Both Moba and ClearWatt now offer OBD-based dealer testing at similar speeds. Moba has the edge in established dealer relationships, CARA approval, and data depth. ClearWatt's NFDA partnership and dual-mode capability (OBD + passive monitoring) make it a stronger contender than before.
However, for the highest standard of independent certification and diagnostic depth, neither matches the dual TUV-certified, cell-level analysis available through Battery Health Check.
See How Battery Health Check Compares
See also: AVILOO vs Moba | AVILOO vs ClearWatt | All Providers Compared