Battery Testing Standards IS 16048-2 : 2021/IEC 61951-2
In the competitive energy market, validating the true capacity of your Nickel-Metal Hydride (Ni-MH) cells is critical for brand reputation. This standard acts as the definitive rulebook for the dimensions, performance, and reliability of portable sealed rechargeable single cells. It goes beyond simple safety checks to ensure your product actually delivers the power promised on the label, filtering out low-quality imports and securing consumer trust in your technology.
- Capacity Verification: Confirms the cell meets its rated Ah capacity.
- Endurance Testing: Validates long-term cycle life and shelf-life stability.
- Physical Precision: Ensures dimensional compatibility for end-user devices.
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Eligible Cell Chemistries
Our testing facility is equipped to handle the full range of Portable Sealed Nickel-Metal Hydride (Ni-MH) rechargeable single cells. This includes:
- Cylindrical Cells: (e.g., AA, AAA sizes)
- Small Prismatic Cells: (Rectangular formats)
- Button Cells: (Coin types for compact electronics)
Comprehensive Performance Analysis
To achieve certification, the cells must undergo a battery of performance-critical assessments. Our scope covers the entire lifecycle of the battery:
- Discharge Performance: Verification of Rated Capacity ($C_5$ Ah) at various currents ($0.2 I_t A$ to $1.0 I_t A$).
- Charge Retention: Measuring capacity loss after 28 days of open-circuit storage.
- Cycle Life Endurance: Testing the cell’s ability to withstand repeated charge/discharge cycles.
- Internal Resistance: Evaluating internal impedance for efficiency.
- Overcharge Capability: Assessing stability under prolonged charging conditions.
Laboratory Credentials
Estimated Turnaround
Due to the nature of performance testing—specifically the "Cycle Life" and "Charge Retention" (28-day) tests—this standard requires a longer duration than typical safety tests.
- Standard Lead Time: Approximately 6 to 8 weeks for full completion.
Note: Expediting is generally not possible for this standard as chemical reactions and discharge cycles cannot be rushed without violating the test protocol.
Sample Submission Guidelines
To run all parallel test clauses (including destructive or long-duration tests) without interruption, we require a robust sample set.
- Required Quantity: 25 to 30 Samples per model.
- Condition: Samples must be fresh (manufactured within the last 3 months) and supplied at approximately 50% state of charge.
Investment Structure
Pricing is determined based on the technical complexity of the battery series.
- Single Model: Standard testing fee applies.
- Series Models: If you have multiple capacities or sizes, we offer series grouping discounts where applicable by BIS guidelines.
Please contact our sales team with your technical datasheet for a precise quotation.
Technical Prerequisites
To initiate the project and ensure your final report is valid for BIS submission, the following documents are mandatory:
- Technical Datasheet: Clearly stating Rated Voltage, Rated Capacity ($C_5$), and Dimensions.
- ISO Certificate: ISO 9001 certificate of the manufacturing unit.
- UN 38.3 Report: (If available, for transport safety verification).
- Marking Label: A clear image or draft of the battery label showing the model name and IS standard number.
Frequently Asked Questions
While IS 16046 is the primary safety standard for BIS CRS, IS 16048-2 is frequently required for specific tenders and performance validation to prove the battery's actual rated capacity.
IS 16046 strictly evaluates safety risks like explosion or fire. In contrast, IS 16048 focuses purely on performance metrics, such as cycle life, actual capacity, and dimensional accuracy.
The standard mandates a strict 28-day charge retention test and multiple charge-discharge cycles. These chemical processes are fixed by physics and cannot be accelerated without invalidating the final results.
Yes, BIS guidelines allow series formation. If cells share the same grade and voltage, you can typically test the highest capacity model and list lower capacity versions in one report.
The technical test report does not typically have an expiry date. However, if you alter the cell's design, raw materials, or manufacturing process, you must conduct fresh testing immediately.
If samples fail to meet the required cycle count, the entire series is rejected. You must rectify the internal chemistry or manufacturing process and submit fresh samples for re-testing.
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