1. Model Explanation7: 7×2V cells, rated 14V: Aviation valve-regulated sealed (basic type)182: 10-hour rate rated capacity 182Ah2. Core Parameters (25℃)Rated voltage: 14V (7×2V)Rated capacity: 182Ah (18.2A → 12.6V)Starting current: 600A (5min@25℃; 1min@‑40℃)End-of-discharge voltage: 1.75V per

1. Model Explanation

7: 7×2V cells, rated 14V

: Aviation valve-regulated sealed (basic type)

182: 10-hour rate rated capacity 182Ah

2. Core Parameters (25℃)

Rated voltage: 14V (7×2V)

Rated capacity: 182Ah (18.2A → 12.6V)

Starting current: 600A (5min@25℃; 1min@‑40℃)

End-of-discharge voltage: 1.75V per cell (10h rate); 1.50V per cell (starting)

Dimensions (L×W×H): 830×178×266mm

Weight: 69kg (±1kg)

Operating temperature: ‑40℃ to 50℃

Case: High-strength ABS, shockproof and impact-resistant

3. Maintenance-Free Principle (AGM Low Liquid)

AGM ultra-fine glass fiber separator, electrolyte absorbed with no free liquid

Oxygen recombination cycle: Oxygen evolves at the positive electrode → reduces to water at the negative electrode, no water consumption, no acid mist

Safety valve pressure control: Sealed and leak-proof, lifetime no need to add water or measure specific gravity

4. Charging Specifications (Single 14V Unit)

Standard constant voltage: 17.15V (±0.1V), current limit 27–45A (0.15C–0.25C)

Full charge determination: Current drops to 0.8–1.0A, voltage ≥14.8V after 1h rest

Supplementary charge: Charge in time when open-circuit voltage <14.8V

Storage: Can be stored for 24 months at 25℃, recharge every 3 months

5. Typical Applications

Ground cold start for J-7/8, MiG-21/23, etc.

Pre-flight/post-flight aircraft power, field emergency troubleshooting

28V power supply vehicle (two units in series 28V/182Ah)

6. Life and Reliability

Float service life: 3–5 years; cycle life: about 500 cycles

Fully sealed, leak-proof, low self-discharge (≤3%/month)

Shockproof, high and low temperature resistant, suitable for harsh airport/field environments

7. Difference from 7-HKAM-182

7-HK: Basic version, ordinary grid/separator, life about 3 years

7-HKAM: Upgraded version, calcium alloy grid, high-purity AGM, service life 4–5 years, better low-temperature performance, fully interchangeable in size/interface/parameters.