Last Updated: May 2026
Prepared by: House of Testing Technical & Compliance Team
Category: Battery & EV Testing
MeitY Order: W-47/14/2024-IPHW dated February 3, 2026
(implemented through BIS guidelines)
IS 16046 (Part 2): 2018 / IEC 62133-2:2017
(existing mandatory standard)
Rated capacity verification per:
Clause 7.3.1 of IS 16047 (Part 3): 2018 / IEC 61960-3:2017
Guidelines effective from:
(or before licence expiry, whichever is earlier)
✅ BIS-Approved for IS 16047 (Part 3) Clause 7.3.1 rated capacity testing
India’s battery compliance ecosystem is rapidly evolving as regulatory authorities increase focus on battery safety, performance consistency, consumer transparency, and product reliability.
One of the important recent developments impacting lithium battery manufacturers, importers, OEMs, and electronics brands is the growing focus on battery rated capacity verification under BIS-related compliance requirements.
The new requirement is expected to significantly impact battery manufacturers, importers, power bank brands, EV ecosystem suppliers, electronics companies, and businesses supplying lithium battery-based products into the Indian market.
As lithium battery adoption expands rapidly across smartphones, laptops, wearables, EV systems, power banks, and portable electronics, manufacturers are increasingly expected to ensure that declared battery specifications remain technically accurate, verifiable, and consistent with actual product performance.
This article explains the practical implications of the new battery rated capacity verification requirement, implementation concerns, likely industry challenges, and why manufacturers should begin preparing early.
What Is Battery Rated Capacity Verification?
Why BIS Introduced the Requirement
Clause 7.3.1 Explained
Products Covered Under the Requirement
Compliance Deadlines
Market Surveillance Implications
Common Industry Pain Points
Practical Compliance Advice
Frequently Asked Questions
This article is particularly useful for:
Lithium battery manufacturers
EV battery suppliers
Power bank manufacturers
Importers and OEM brands
Electronics companies
Battery pack assemblers
Compliance and testing teams
Product certification departments
Businesses supplying batteries into the Indian market
Walk into any electronics market in India and you will find power banks declaring 20,000mAh for less than ₹400. You will find lithium cells marked "3500mAh" that deliver less than 2000mAh in actual use. You will find laptop replacement batteries claiming full original capacity that have been depleted or are using lower-grade cells.
Battery capacity misdeclaration is not just a commercial fraud — it has real consequences:
Consumer deception: A customer paying for a 10,000mAh power bank that delivers 6,500mAh is being deprived of almost a third of what they paid for
Safety implications: Batteries falsely declared as higher capacity may have been manufactured with lower-quality cells that also have inadequate safety margins
Market distortion: Honest manufacturers who accurately declare capacity cannot compete with those who inflate their numbers
The Ministry of Electronics and Information Technology (MeitY) acted on this systematic problem with Order W-47/14/2024-IPHW on February 3, 2026. BIS issued formal implementation guidelines on February 10, 2026.
The solution: mandatory testing and verification of rated capacity — not just declaration by the manufacturer.
The introduction of mandatory rated capacity verification is expected to significantly impact battery manufacturers, importers, electronics brands, EV ecosystem suppliers, and power bank companies operating in India.
As compliance enforcement expands, manufacturers may increasingly require technically capable laboratories with approved testing infrastructure and battery evaluation expertise to support product certification, verification, and regulatory compliance activities.
Industry demand for battery testing and verification capabilities is expected to increase substantially as implementation progresses.
Under the original IS 16046 (Part 2) certification process, rated capacity was a declared parameter — the manufacturer wrote the capacity on the label and in the BIS application, and BIS accepted this declaration without independently verifying it.
Safety testing (overcharge, short circuit, crush, thermal abuse) was conducted rigorously. But the capacity number itself was taken on trust.
This created an obvious incentive structure: inflating the declared capacity made products look better and sell better. If the actual capacity was never measured in certification testing, there was no mechanism to catch the inflation.
BIS surveillance testing had sometimes tested capacity and found discrepancies — but capacity testing was not a required part of surveillance protocol.
MeitY's order changes this fundamentally:
MeitY's order is technically precise. The requirement is:
"Rated capacity shall be measured and verified in accordance with Clause 7.3.1 of IS 16047 (Part 3): 2018 / IEC 61960-3:2017 — Discharge Performance at 20°C — and reported for compliance under IS 16046 (Part 2)."
IS 16047 (Part 3): 2018 / IEC 61960-3:2017 is the Indian Standard for secondary lithium cells and batteries — specifically covering test methods.
Part 3 addresses:
cylindrical cells
prismatic cells
pouch cells
Clause 7.3.1 specifically covers the discharge performance test at 20°C — the standard method for determining actual delivered capacity.
The test is standardized to eliminate variables that artificially inflate or deflate measured capacity.
All samples are brought to and maintained at:
before testing begins.
This eliminates temperature influence on capacity measurement.
The battery is charged to the manufacturer’s specified maximum voltage using the specified charging method.
After charging, the battery rests at:
for the specified stabilization period.
The battery is discharged at:
Example:
A 10,000mAh battery is discharged at:
Discharge continues until the manufacturer’s specified minimum voltage.
The total delivered charge (mAh) is measured.
This measured value becomes the actual verified capacity.
Testing is generally performed for a minimum of three cycles.
The third cycle value is typically considered for final evaluation.
The measured capacity at the third discharge cycle must be:
Example:
Declared: 10,000mAh
Measured: 9,800mAh
Result: ❌ Fail
A conservatively declared battery is acceptable.
The requirement applies to portable sealed secondary lithium-ion cells and batteries regulated under:
Products include:
Lithium-ion cylindrical cells
Lithium-ion pouch cells
Lithium polymer batteries
Power banks
Laptop batteries
Tablet replacement batteries
Portable tool batteries
Portable battery systems
Consumer electronics batteries
The following are generally outside this requirement:
EV traction batteries
Stationary energy storage systems
Lead-acid batteries
NiMH batteries
Primary (non-rechargeable) batteries
| Battery Category | Potentially Impacted Products |
|---|---|
| Consumer Electronics Batteries | Smartphones, tablets, laptops |
| Portable Electronics | Power banks, Bluetooth devices |
| EV & Mobility Batteries | Electric scooters, EV systems |
| Industrial Battery Systems | Backup systems, energy storage |
| Smart Devices | IoT and wearable products |
Rated capacity test reports must still be submitted before:
even if licence validity extends beyond that date.
Capacity test reports must be submitted before licence expiry.
Applications filed after guideline implementation are expected to include rated capacity verification.
No new BIS licence under IS 16046 (Part 2) will be granted without Clause 7.3.1 rated capacity verification.
This requirement is not limited to initial certification.
BIS market surveillance testing will include rated capacity verification.
Products purchased from:
retail markets
online marketplaces
distributors
dealers
may be tested during surveillance activities.
A market sample failing declared capacity verification may trigger:
corrective action
compliance queries
licence suspension
cancellation
enforcement action
In many practical cases, battery-related compliance issues arise not because products completely fail safety evaluation, but because manufacturing consistency, supplier quality control, documentation discipline, and declared specifications fail to remain aligned over time.
As battery enforcement and surveillance activities continue expanding in India, manufacturers maintaining stronger technical and quality systems are likely to experience smoother long-term compliance management.
Manufacturers and importers may face issues such as:
mismatch between declared and tested capacity
inconsistent cell quality
supplier variation issues
undocumented cell changes
unstable production consistency
battery labeling inconsistencies
inadequate traceability documentation
testing repeatability concerns
production batch variation
Businesses relying heavily on third-party battery sourcing may need stronger supplier verification and quality control systems moving forward.
| Compliance Preparation Area | Why It Matters |
|---|---|
| Verified battery specifications | Reduces mismatch risks |
| Stable supplier quality | Improves consistency |
| Proper traceability records | Important during evaluation |
| Finalized labeling details | Prevents documentation issues |
| Batch consistency controls | Reduces surveillance risks |
| Technical documentation readiness | Speeds up compliance process |
| Stable battery sourcing | Improves long-term consistency |
| Controlled production process | Reduces variation issues |
Manufacturers preparing these elements in advance generally experience smoother testing, documentation review, and compliance management.
House of Testing is a NABL & QAI accredited and BIS-approved testing laboratory supporting manufacturers, importers, OEMs, and compliance teams across electronics, electrical products, batteries, LED products, appliances, and related regulatory testing domains.
We are BIS-approved for IS 16047 (Part 3): 2018 / IEC 61960-3:2017 rated capacity testing and are among a limited number of BIS-recognized laboratories in India specifically equipped and approved for this requirement.
Our battery testing laboratory supports:
precision temperature-controlled testing
high-accuracy battery cycling systems
multi-channel testing capability
BIS-format technical reporting
compliance-oriented battery evaluation
Battery rated capacity verification is becoming a major compliance requirement in India
Capacity declaration is no longer based only on manufacturer declaration
BIS market surveillance will include rated capacity verification
Supplier quality and production consistency are becoming increasingly important
Incorrect capacity declaration may create serious compliance risks
Manufacturers preparing early are likely to experience smoother long-term compliance management
Yes. The measured capacity must be equal to or greater than the declared value.
No. Final battery pack performance must be verified as an assembled product.
Yes. No exemption currently exists based on production volume.
Yes. Market surveillance testing may include rated capacity verification.
Only BIS-recognized laboratory reports are acceptable for compliance submission.
Testing demand, supplier verification, documentation alignment, and production consistency management may become increasingly challenging closer to enforcement deadlines.
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House of Testing is a NABL & QAI accredited and BIS-approved testing laboratory supporting manufacturers, importers, OEMs, and compliance teams across electronics, electrical products, batteries, LED products, appliances, and related regulatory testing domains.
The laboratory supports testing and compliance activities across multiple Indian and international standards, including emerging battery and electronics safety requirements relevant to the Indian market.