Battery Passport Software Compared

A young market: what really matters when comparing

From 18 February 2027, EV batteries, LMT batteries and industrial batteries above 2 kWh that are newly placed on the market in the EU need a digital battery passport (Art. 77 of Regulation (EU) 2023/1542). The software market is growing accordingly fast. But the market is young: there is no seal and no certification for battery passport software, the EU's central registry interfaces are only announced for the fourth quarter of 2026, and several implementing acts from the Commission are still pending. Anyone comparing today is therefore not comparing finished, officially audited solutions, but software at different stages of completion in an environment that is still moving.

For you, that means two things. First: advertising claims such as "fully compliant" cannot currently be proven by anyone, because essential requirements are simply still missing. A robust comparison therefore rests not on promises but on things you can verify yourself. Second: a comparison by brand name goes stale quickly, because the provider landscape changes constantly. It is more durable to look at provider types, because practically every offering on the market follows one of four basic models, and each model brings its own strengths and limits, regardless of the logo on the homepage.

If you are right at the beginning: what a battery passport is in terms of content and which data belongs in it is explained in our fundamentals article What Is a Battery Passport?. This page is about the question that follows: with which kind of software do you implement it?

Seven criteria you can verify yourself

Whatever the type: these seven points separate robust software from pretty slides. All of them can be checked without jargon, most in a single afternoon. Take the list into every provider conversation, or better: check the points yourself on the product before a conversation is needed at all.

1. Type-specific mandatory fields EV, LMT, industrial and stationary batteries as well as batteries without a battery management system differ in their mandatory data. Check whether the editor shows different fields per battery type or whether all types get the same form. A one-size-fits-all form later produces either gaps or unnecessary ballast.
2. Blocking schema validation A passport export should be validated against a published schema, for example the Battery Passport Data Model v1.3. What matters is whether the software actually blocks faulty data or exports it anyway. Do not ask whether validation happens, try it out with a deliberately incomplete data set.
3. Access levels verifiable in the page source Annex XIII separates public fields, fields for persons with a legitimate interest and a level for authorities. Open one of the provider's public passport pages and look at the page source: restricted values must not arrive there in the first place. If they are merely hidden in the display, the separation is no separation.
4. Export paths without lock-in Can you get out again at any time with all your data? Demand machine-readable exports following a published schema in addition to the PDF, ideally via API as well. What you cannot export effectively belongs to the provider, not to you.
5. Handling of open regulation The CO2 format acts are missing, the registry interfaces are announced for the fourth quarter of 2026, the legal act on legitimate interest is still pending. Anyone promising you full compliance or a finished registry connection today is promising something nobody can deliver yet. A serious provider calls open points open.
6. Verifiability and signature Can a third party check that a published passport is unchanged? Look for signatures, a publicly accessible verify route and a version history. Without that, a passport is just a web page whose content could be changed silently at any time.
7. Testability without an appointment Can you create an account without a sales call, play through a passport all the way to publication and see the prices? If a product can only be seen behind a demo booking, check the other six criteria especially thoroughly.

A practical note on the order: start with the seventh criterion. If you can test a product without an appointment, criteria one to six take care of themselves in the same session, because you see everything with your own eyes. With providers that offer no free trial, all you can do is have every answer given in writing and demand evidence.

Which route fits you? Decision questions instead of a blanket verdict

An honest recommendation depends on your situation, not on a ranking. Four of the following questions each lead to one provider type, the fifth helps if you cannot clearly answer yes to any of them:

1. Do you need passports for many product categories beyond batteries? If yes, and if budget and time for an integration project are available, the arguments favour an enterprise platform. Weigh the project lead time realistically against the 18 February 2027 deadline.
2. Does nobody internally have time for the topic? Then a service provider can take the work off your hands. Clarify in writing beforehand in which format you get your data back and what later changes cost. Nobody can take your eIDAS verification as an economic operator off your hands.
3. Is the battery passport a core part of your product? If your business model is built on the passport and a development team is permanently assigned to it, building in-house can be the right route. Budget for the regulatory upkeep over years, not just the initial build.
4. Do you want to start yourself with a manageable range of models before the deadline? Then self-service software is the direct route: start today, complete the data step by step, publish. The <checkliste>Battery Passport Checklist</checkliste> helps you sort out your data situation.
5. Still undecided? Our <hub>battery passport</hub> overview offers an introduction to the substance of the topic. For the decision itself: an afternoon with a real account says more than any brochure, and at DPP Hero the first passport is free permanently. Test before you commission a long comparison.