Independent Lab Report
SCIGOLD AA
4,440 mWh —
Verified by SGS
Published · Updated
SCIGOLD AA 1.5V Lithium batteries deliver 4,440 mWh of measured capacity, independently verified by SGS Testing Services using IEC 61960-3 standard discharge testing. It is the highest capacity rechargeable AA we have found, and the only one whose capacity is SGS-measured: 32% more than the best NiMH AA (3,360 mWh) and 48% more than the industry average (3,000 mWh).
The notarized SGS report is available on request from info@scigoldpower.com.
SCIGOLD_AA_4440mWh_SGS_Summary.pdf
How SGS Measured
4,440 mWh
Verification was performed by SGS Testing Services — a Swiss multinational testing, inspection, and certification company founded in 1878.
- Standard
- IEC 61960-3:2017 (Secondary lithium cells for portable applications)
- Method
- Constant current discharge at 0.2C (a current that would drain the rated capacity in 5 hours) to cutoff voltage
- Temperature
- 23°C ± 2°C (room temperature)
- Sample size
- 50 cells across 3 production batches
- Result
- Mean 4,440 mWh, standard deviation σ = 78 mWh (1.8% batch variation)
How SCIGOLD Compares to Major Brands
| Brand | Capacity (mWh) | Verified By | Voltage | Chemistry |
|---|---|---|---|---|
| SCIGOLD AA Lithium | 4,440 | SGS | 1.5V | Li-ion |
| imuto 4,200 mWh AA | 4,200 | Self-reported | 1.5V | Li-ion |
| imuto AA | 3,600 | Self-reported | 1.5V | Li-ion |
| Philips AA | 3,600 | Self-reported | 1.5V | Li-ion |
| BONAI AA (2,800 mAh) | 3,360 | Self-reported | 1.2V | NiMH |
| Pale Blue Voyager AA | 3,300 | Self-reported | 1.5V | Li-ion |
| Eneloop Pro AA | 3,120 | Self-reported | 1.2V | NiMH |
| Amazon Basics High-Capacity (2,400 mAh) | 2,880 | Self-reported | 1.2V | NiMH |
Data sources: SCIGOLD: SGS independent test, 2026. Every other figure is manufacturer-reported and was not tested by SGS.
- imuto: Amazon listing B0GFDPLGF8 (4,200 mWh AA, 2,500+ cycles) and imuto.com product page (3,600 mWh).
- Philips: Amazon listing B0FG7X3FN6 (3,600 mWh).
- Pale Blue: paleblueearth.com Voyager AA product page (3,300 mWh).
- NiMH mWh = rated mAh × 1.2V: BONAI, Amazon listing B0DG24VPBJ (2,800 mAh); Eneloop Pro, Panasonic's US eneloop pro product page (up to 2,600 mAh); Amazon Basics, Amazon listing B00HZV9WTM (2,400 mAh).
- Checked September 2026; Panasonic's page, October 2026.
The cell SGS measured.
4,440 mWh per cell, SGS-verified under IEC 61960-3. Buy it as the kit with the Pocket Charging Case (CW505), as the family bundle, as cells alone, or add a spare charger.
Why mWh (Not mAh) Tells the Real Story
Most rechargeable AA brands advertise mAh (milliamp-hours). This is misleading because:
- mAh measures charge, not energy
- mWh measures energy = voltage × mAh
- 1.2V NiMH "2,000 mAh" = 2,400 mWh actual energy
- 1.5V Li-ion "2,000 mAh" = 3,000 mWh actual energy
So a 1.5V lithium AA with the same mAh delivers 25% more real energy than 1.2V NiMH. Read the full explanation →
Frequently Asked Questions
What is the verified capacity of SCIGOLD AA batteries?
Who is SGS Testing Services?
How is rechargeable AA capacity measured?
Why use mWh instead of mAh?
How many samples were tested?
Independent Lab Report
Download the 4-page SGS test summary (PDF).
The notarized SGS report is available on request from info@scigoldpower.com.
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