Battery as a Service calculator India

Compare the upfront saving from an EV BaaS plan with the battery rental you will pay over your expected ownership period.

Free tool · Battery as a Service

Is BaaS worth it for you?

A lower EV price can mean a battery payment every kilometre. Use your real monthly driving to see when the rental saves money — and when it overtakes the upfront saving.

Battery ownership may cost less

₹50.8k

Rental paid above the upfront saving after 5 years.

Choose a BaaS plan

Presets are editable estimates, not dealer quotes.

Monthly battery rental1,800 km billed

₹4,680

Actual 1,000 km · Tata Tiago EV

Effective rate

₹4.68

per km after minimum floor

Rental overtakes saving

4y 1m

from first payment

Your numbers

Change any field to match the written offer.

Battery rental rate₹/kmMinimum billed km / monthkmUpfront saving with BaaS₹Your monthly drivingkmYears you will keep the caryr

Upfront saving vs rental

Over your 5-year ownership horizon.

Upfront saving₹2,30,000

Total rental₹2,80,800

₹50.8k more rental is paid than the upfront saving.

The 1,800 km minimum adds ₹800 worth of billed distance each month.

Indicative only. This simple comparison excludes financing interest, charging, insurance, taxes, maintenance, resale value, battery warranty terms, and any lock-in or exit fees. Confirm the exact rate, minimum distance, and ownership terms with your dealer or lender.

How the BaaS calculator works

Battery as a Service separates the EV battery from the vehicle purchase price. You pay less upfront, then pay a usage-linked battery rental. The important detail is the minimum monthly distance: if you drive below that floor, the plan still bills the floor.

When BaaS can make sense

BaaS is most useful when upfront affordability matters, your driving is predictable, and you do not expect to keep the car beyond the break-even point. High-mileage owners should compare the accumulated rental with the battery cost they avoided. Low-mileage owners should focus on the effective rate after the minimum-kilometre commitment.

What to check before signing

Ask who owns the battery, whether the subscription transfers on resale, what happens if the battery degrades, and whether the quoted rate changes with a different variant or lender. Also check lock-in, early exit, warranty, buyback, and whether the advertised price excludes statutory charges.

Frequently asked questions

Does BaaS change the EV’s range?

No. It changes how the battery is paid for, not the battery’s capacity or driving range.

Why is my effective rate higher than the advertised rate?

A minimum monthly kilometre floor means you pay for more kilometres than you drive. The calculator divides the billed rental by your actual kilometres.

Is BaaS always cheaper?

No. It trades a lower upfront price for recurring payments. It is cheaper only while cumulative rental remains below the upfront saving, before considering financing and resale effects.

Reference figures checked against Autocar India, Spinny, Tata Motors, and Mahindra Electric BaaS FAQ. Origin SUV dual-loan stickers: Mahindra BaaS article.