Buying an EV Charger in India? 15 Questions to Ask Your Charger Vendor Before You Pay

Quick answer: Before buying from any EV charger vendor in India, get written answers on six things: connector and vehicle compatibility, what the quote actually includes, the electrical work your site needs, OCPP and CMS compatibility, warranty and service response, and real deployed references. The lowest quote is rarely the lowest total cost.

Buying an EV charger is not just choosing the lowest price or the highest kW rating. The charger is one part of a large.

EV charging infrastructure:

• electrical supply and protection
• installation and civil work
• networking
• software and a Charging Management System (CMS)
• payments
• maintenance and customer support
• warranty and spare parts

A cheaper charger becomes expensive quickly if installation is under-scoped, downtime drags on because no technician is nearby, or the software layer locks you into one platform. The purchase price is usually the most visible cost, but it is rarely the biggest one over the life of the station.

This guide assumes you already know roughly what kind of charger you need. If you are still deciding, start with our guide on [How to Choose the Right EV Charger for Your Business]. This article picks up where that one ends, when you are talking to vendors and comparing quotations

It is written for CPOs, petrol pump owners, hotels, offices, malls, housing societies, fleet operators, parking operators and property owners.

Before You Compare EV Charger Prices, Define Your Use Case

Vendors can only quote accurately if you give them accurate inputs. If you do not define your use case, you will get quotes that look comparable but are not. Write down the following before you contact anyone:

• AC or DC: AC chargers suit long-dwell locations like offices, housing societies, hotels and overnight parking. A DC fast charger suits short-stop, higher-turnover sites like highway stops and petrol pumps. Your dwell time decides this more than anything else.
• Expected sessions per day: Ten sessions and fifty sessions are different projects.
• Expected daily energy (kWh): This drives your electricity bill and your load requirement.
• Vehicle types: Cars, two-wheelers, three-wheelers, e-buses and light commercial vehicles have different connector and power needs.
• Public, private or fleet use: Public sites need payments, uptime and visibility. Fleets need scheduling and reporting.
• Charging duration: How long does a typical vehicle stay?
• Indoor or outdoor: Outdoor sites face dust, heat, rain and vehicle impact risk.
• Existing electrical capacity: Know your sanctioned load and what is spare.
• Future expansion: Do you plan two chargers now and ten in two years? Say so now.

Send this same brief to every vendor. It is the only way to compare quotations honestly.

15 Questions to Ask Your EV Charger Vendor Before Buying

1. Which vehicles and connectors is this charger compatible with?

Why ask: A charger that cannot plug into your customers' vehicles is worthless, whatever its rating.

A good answer: The vendor lists the exact connector types, the vehicle segments they serve, and the charger's connector configuration. For DC charging of cars in India, CCS2 is the connector to confirm. For AC, ask which connector is fitted (Type 2 is common for four-wheelers) and whether it suits your target vehicles. Two- and three-wheelers often use different connectors and power levels, so do not assume a car charger serves them. Also ask whether a single gun or multiple guns can charge at once, and how power is shared between them. [VERIFY connector standards against the latest BIS / Ministry of Power documents before publication.]

Red flags: "It works with all EVs," or vague answers about connectors.

Cost impact: Adding connectors or adapters later is expensive and sometimes not possible. A wrong connector mix can leave a bay unusable for months.

2. What is the actual charging power, and what happens in real operating conditions?

Why ask: Rated power is the charger's maximum, not what every vehicle will draw. The vehicle's battery state, its onboard charging limits, temperature and the charger's own design all affect real power. A 60 kW DC charger will not deliver 60 kW to every car for the whole session.

A good answer: The vendor explains the rated output, how power is shared across multiple guns, whether power reduces in hot weather, and how this affects a typical session at your site.

Red flags: Marketing kW numbers with no explanation of real-world conditions, or promises of "full charge in X minutes" for every vehicle.

Cost impact: If your revenue model assumes a session time the charger cannot deliver, throughput and returns both suffer.

3. What electrical infrastructure does my site need?

Why ask: Site electrical work is often the biggest source of surprise costs. Chargers do not run on "spare capacity"; they run on a properly assessed electrical system.

A good answer: The vendor asks about your sanctioned load, the existing supply and available panel space. They should tell you what their assessment covers: supply phase requirements, protection equipment, cabling, panel modifications, earthing, and the physical route between panel and charger. They should recommend a qualified electrician or electrical contractor to confirm site feasibility before you commit. For a larger load, they should also mention any need to coordinate with your electricity distribution company (DISCOM).

For context, the Ministry of Power's 2024 guidelines treat EV charging as a de-licensed activity, and require power utilities to provide connections within set timelines depending on the area. Check the current rules and your state DISCOM's process before planning timelines.

Red flags: A firm quote without a site visit or electrical details, "no extra work needed" with no assessment, or any suggestion to skip proper protection or approvals.

Cost impact: Cabling, panel upgrades and civil work can substantially change project cost. This is where cheap quotes most often grow. Electrical work must be done by qualified professionals; nothing in this guide replaces a proper site assessment.

4. What exactly is included in the quoted price?

Why ask: Two quotes can be for very different scopes. Ask the vendor to separate each item:

• charger hardware
• installation
• civil work (foundation, bollards, canopy, markings)
• cabling
• electrical equipment (breakers, panels, protection)
• commissioning and testing
• networking (SIM / router / connectivity)
• software / CMS access
• taxes (GST) and transportation
• AMC (annual maintenance contract)
• any other recurring costs

A good answer: An itemised quotation with each line stated as included, excluded or "by client".

Red flags: A single lump-sum figure, or vague phrases like "standard installation" or "as per site."

Cost impact: Every "excluded" line becomes your cost later.

5. What will my total cost of ownership be?

Why ask: Purchase price is one part of what you will pay over the charger's life.

Purchase price + Installation + Electrical infrastructure + Software/CMS + Maintenance + Networking + AMC + Other recurring costs = Total Cost of Ownership (TCO)

A good answer: The vendor can outline recurring costs over a stated period (for example five years) and clearly state assumptions.

Red flags: The vendor only quotes the upfront price, or cannot say what you will pay after year one.

Cost impact: A charger that is cheaper upfront but has paid software, costly service calls and a short warranty can cost more over its life. Also budget your electricity cost and downtime separately.

6. What warranty is included?

Why ask: Warranty defines who pays when things fail, and public chargers do fail.

A good answer: The warranty is in writing and specifies:

• duration (and when it starts: dispatch, installation or commissioning)
• which parts are covered (power modules, cables, screens, connectors, communication units)
• exclusions (misuse, vandalism, power surges, water ingress, unauthorised repair)
• replacement policy (repair, swap or replacement unit)
• response time commitment

Red flags: Verbal warranty promises, "lifetime warranty" without terms, or exclusions that cover the most common failures.

Cost impact: Cables and connectors are wear items. Check whether they are covered.

7. Where will I get after-sales service?

Why ask: For a public EV charging station, downtime is lost revenue and lost customer trust. Service capability matters as much as the charger.

• Is there local technical support near my city?
• How quickly can a technician reach the site?
• What happens if the charger stops working?
• Is remote troubleshooting available?
• Who is responsible: the vendor, a partner, or a third party?

A good answer: Named service locations or partners, a defined response process, escalation contacts, and remote diagnostics before dispatching a technician.

Red flags: "We'll send someone" with no timeline, or service centres far from your site.

Cost impact: Every day a charger is down costs you sessions. Service response time is a revenue question.

8. What spare parts are available, and how quickly can they be supplied?

Why ask: A charger waiting weeks for one component is a charger earning nothing.

A good answer: The vendor states which parts are stocked locally, typical lead times, whether a starter spares kit is offered, and how long parts remain available for the model.

Red flags: Parts imported on order with no lead-time commitment, or a model that may be discontinued soon.

Cost impact: For sites with multiple chargers, on-site or regional spares can reduce downtime significantly.

9. Does the charger support OCPP, and how exactly?

Why ask: OCPP (Open Charge Point Protocol) is the communication standard between a charger and a Charging Management System (also called CSMS). The goal is a uniform way for any central system to communicate with any charge point, regardless of vendor. That is what keeps you from being locked into one software provider.

A good answer: Ask the vendor:

• Which OCPP version? OCPP 1.6 is widely deployed, and OCPP 2.0.1 adds features such as device management, security and smart charging. The two versions are not compatible with each other. OCPP 2.0.1 was approved as an IEC standard (IEC 63584) in 2024. A newer version is not automatically better for every project; what matters is whether the version and its supported features fit your CMS and your use case.
• Which functions are supported? "OCPP supported" can mean anything from basic messaging to a broad feature set. Ask which functions and profiles (for example smart charging, remote start/stop, firmware update) are implemented.
• Has it been tested with the CMS I plan to use?
• Can the charger be moved to another compatible backend later, and is the OCPP endpoint configurable by me?

Red flags: "OCPP supported" with no version or feature list, OCPP that only works with the vendor's own software, or locked configuration.

Cost impact: Poor OCPP implementation leads to integration delays, missing features and expensive re-work.

10. Which Charging Management Systems can this charger work with?

Why ask: Think about the software layer before buying hardware. The CMS is what you will use every day to run the station. Check what the CMS covers:

• remote monitoring and charger status
• session management
• energy data
• revenue reporting
• user management
• fault monitoring and alerts
• tariff management
• reports and exports
• APIs for integration

A good answer: A list of tested CMS platforms, an explanation of who provides and supports the software, and clarity on whether CMS access is included or paid separately.

Red flags: Hardware sold with a proprietary app you cannot leave, unclear data ownership, or no answer on software pricing.

Cost impact: Software fees are recurring. Data lock-in makes switching painful.

11. What happens if the internet connection goes down?

Why ask: Connectivity fails, especially at highway sites and basements. Ask the vendor to explain, in writing:

• Can sessions continue or start during an outage?
• How are transaction records stored?
• How and when is data synchronised after reconnection?
• How does the charger recover on its own?
• What connectivity options exist (Wi-Fi, Ethernet, mobile data), and is a backup possible?

A good answer: A clear description based on the charger's tested behaviour, ideally demonstrated.

Red flags: Confident claims with no specifics, or answers that differ between sales and technical staff. Do not accept invented capabilities. If the vendor is not sure, ask them to confirm with engineering in writing.

Cost impact: Lost transaction data means lost revenue records and billing disputes.

12. What payment methods can the charging station support?

Why ask: Indian customers expect easy digital payment. UPI is now the default expectation for many users, and receipts or invoices matter for business customers. Ask:

• Which payment methods are supported: UPI, cards, wallets, payment links, app-based payments?
• Are receipts and GST-compliant invoices generated?
• Is payment handled by the charger, the CMS or a third-party gateway?
• What are gateway and transaction charges, and who bears them?
• How does settlement to your bank account work?

Payment capability should be evaluated together with the CMS/backend, since the CMS usually handles billing logic, tariffs and reconciliation.

Red flags: "Payments can be added later" without detail, or unclear settlement terms.

Cost impact: Gateway fees and settlement timing affect your margins and cash flow.

13. How will I monitor the charger remotely?

Why ask: Operators cannot stand at every site. Look for:

• live charger status
• active sessions
• energy consumption
• revenue and transaction history
• alerts and fault notifications
• remote diagnostics and reset

A good answer: A live demo dashboard, not a slide.

Red flags: Monitoring limited to "online/offline", or no alerting.

Cost impact: Faster fault detection shortens downtime and reduces unnecessary site visits.

14. How easy is it to expand from one charger to many locations?

Why ask: Most businesses start small. Your first purchase should not trap you. Ask about:

• multi-charger and multi-site management from one dashboard
• software scalability and pricing as you add chargers
• user and role management (site managers, finance, technicians)
• consolidated reporting
• centralised operations
• whether future chargers from other brands can join the same backend (this depends on OCPP and CMS openness)

Red flags: Pricing that jumps sharply per charger, or a platform that only works with one brand.

Cost impact: Rebuilding your software setup at ten chargers is far costlier than planning for it at one.

15. Can you show me a real deployed installation or customer reference?

Why ask: Brochures do not break down. Real installations do. Ask for:

• a comparable deployment (similar charger, similar use case, similar city)
• a customer reference you can speak to, where the customer agrees
• a documented case study
• photos or a site visit if possible

Red flags: No references, references for unrelated products, or a deployment list that cannot be verified.

Cost impact: A vendor who has solved your type of problem before is less likely to learn on your budget.

10 Red Flags to Watch for When Choosing an EV Charger Vendor

1. The vendor only talks about price. Good vendors ask about your site, load, vehicles and plans.
2. Unclear installation scope. If you cannot tell who does civil, cabling and commissioning, expect disputes.
3. "OCPP supported" with no explanation. Version, features and CMS testing matter.
4. No clear warranty terms. Verbal promises do not protect you.
5. No defined service process. No response times, no escalation path.
6. No spare-parts information. Especially risky for public charging stations.
7. Hidden software or subscription costs. Ask about every recurring fee, in writing.
8. No documentation. Datasheets, manuals, wiring requirements, test reports and certifications should be available.
9. No clear compatibility information. Vehicles, connectors, backends and payment options should all be specified.
10. Guaranteed returns. Nobody can guarantee revenue or payback without explaining assumptions like utilisation, tariff and electricity cost. Treat any guaranteed-return promise carefully.

None of these points to any particular company. They are patterns to watch for in any vendor conversation.

How to Compare Two EV Charger Quotations

Fill this table in for each shortlisted vendor. Where a vendor leaves a field blank, that is your follow-up question.

Why the lowest quote is not automatically the cheapest:

Consider a hypothetical. Vendor A quotes less for hardware but excludes cabling, civil work and commissioning, and charges a monthly software fee. Vendor B quotes more but includes installation and two years of software. After adding excluded items and two years of fees, Vendor A can end up costing more. (This example is illustrative, not a real price comparison.)

Always compare on total project cost and estimated operating cost over the same period, ideally three to five years.

EV Charger Vendor Checklist Before You Pay

Requirements

☐ Use case defined (AC/DC, sessions, vehicles, public/private/fleet)

☐ Expected daily energy and session volume estimated

☐ Future expansion plan shared with vendor

Hardware

☐ Charger power confirmed (including real-world behaviour)

☐ Vehicle compatibility checked

☐ Connector type(s) confirmed

☐ Certifications and documentation received

Site and installation

☐ Electrical feasibility assessed by a qualified professional

☐ Sanctioned load and any DISCOM process checked

☐ Installation scope confirmed in writing

☐ Civil work confirmed (who, what, cost)

☐ Commissioning included

☐ Delivery and installation timeline confirmed

Software and connectivity

☐ OCPP version and supported functions confirmed

☐ CMS compatibility confirmed (and tested)

☐ Offline behaviour explained

☐ Networking requirements and costs confirmed

☐ Payment methods confirmed

☐ Software charges and data ownership confirmed

Commercial and support

☐ Taxes and transport confirmed

☐ Warranty documented (duration, parts, exclusions)

☐ AMC clarified

☐ Spare-parts availability checked

☐ Service response process understood

☐ Training and support confirmed

☐ Customer reference or case study reviewed

☐ Total cost of ownership calculated

Choosing the Charger Is Only Half the Job

Choosing the charger is only one part of building a charging station. The software layer that manages the charger can be equally important.

A Charging Management System (CMS) is what lets you run the station as a business. Depending on the platform, it can help with:

• charger monitoring
• session management
• revenue tracking
• fault alerts
• remote operations
• customer payments
• reporting
• managing multiple chargers and sites

Savekar's CMS is built for Indian charging operators. Savekar's CMS supports OCPP 1.6J and OCPI 2.2.1 where applicable, along with charger monitoring, remote charger operations, real-time fault alerts and diagnostics, revenue and session tracking, tariff management, multi-location management, and WhatsApp + UPI-based charging and payments. Pasted text

Learn more:
OCPP CMS:https://www.savekar.com/ocpp-cms
Solutions:https://www.savekar.com/solutions
Driver charging experience:https://savekar.com/demo/drivers

If you are weighing up vendors, it helps to test any CMS with your shortlisted charger before you commit, whichever platform you choose.

Planning an EV charging station? Before finalising your charger, evaluate both the hardware and the management layer. Savekar can help businesses understand their charging-management requirements and explore compatible solutions.

Frequently Asked Questions

1. How do I choose an EV charger vendor in India?

Start with your use case, then shortlist vendors who can show comparable deployments. Compare itemised quotations, warranty terms, service coverage, OCPP and CMS compatibility, and total cost of ownership rather than price alone. Ask for references and documentation before placing a purchase order.

2. What should I check before buying an EV charger?

Check connector and vehicle compatibility, real charging power, site electrical feasibility, installation scope, OCPP version, CMS compatibility, payment options, warranty, spare parts and after-sales support. Confirm all of these in writing. Also confirm delivery timelines and who handles commissioning.

3. How much does an EV charger cost in India?

Prices vary widely by type (AC vs DC), power rating, brand and features, and hardware is only part of the project. Installation, electrical work, software and maintenance add to the total. Ask for itemised quotes from several vendors instead of relying on generic figures.

4. What is included in EV charger installation?

It can include site assessment, mounting or foundation, cabling, protection equipment, earthing, commissioning and testing. Scope differs between vendors, so ask for a written list of what is included, what is excluded, and what you must arrange yourself, such as civil work or utility approvals.

5. Is OCPP important when buying an EV charger?

For most commercial and public charging, yes. OCPP lets your charger communicate with a CMS and helps avoid lock-in to one software provider. But "OCPP supported" is not enough. Ask which version and functions are implemented, and whether it has been tested with your intended CMS.

6. Do I need a CMS for my EV charging station?

For public or commercial charging, a CMS is generally needed to monitor chargers, manage sessions, handle payments and track revenue. A single private charger for personal use may not need one. If you plan to charge customers or scale, plan your CMS before buying hardware.

7. What is the difference between an EV charger manufacturer and a charger vendor?

A manufacturer designs and builds chargers. A vendor or supplier sells them and may be the manufacturer, an importer, a distributor or an installer. Ask who provides warranty, spare parts and service, because these responsibilities can sit with different companies.

8. What warranty should I expect from an EV charger vendor?

Expect a written warranty stating duration, start date, covered parts, exclusions and response times. Warranty terms vary between vendors and products, so compare them directly. Check whether cables, connectors and communication units are covered, and whether replacement or on-site repair is offered.

9. What is the total cost of setting up an EV charging station?

It includes the charger, installation, electrical upgrades, civil work, networking, software, commissioning and taxes, plus ongoing electricity, maintenance, AMC and software costs. Costs depend heavily on site conditions and charger type, so obtain itemised quotations for your specific site.

10. How do I compare two EV charger quotations?

Put both into a table covering hardware, installation, electrical work, software, OCPP, warranty, AMC, networking, spares, support and recurring fees. Align scope first, then compare total project cost and estimated operating cost over three to five years, not the headline price.

11. Which charger is suitable for a commercial EV charging station?

It depends on dwell time, vehicle mix and expected sessions. AC chargers usually suit longer stays such as offices, hotels and housing societies. DC fast chargers suit short-stop, high-turnover sites. Choose one your vendor can support locally and connect to a compatible CMS.

12. What should I ask about EV charger after-sales service?

Ask about local technicians, response times, remote troubleshooting, escalation contacts, spare-parts availability, AMC options and what happens if the charger goes down. Get service commitments in writing, since for public charging stations downtime directly affects revenue.