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Description
The Starmax High-Temperature GEL Deep Cycle AGM Battery is a high-performance deep cycle GEL AGM battery designed for solar power systems, off-grid energy storage, wind power applications, sweepers, golf carts, and light industrial electric vehicles. Built for extreme temperatures (-15°C to 60°C), it features low self-discharge (2–3% per month at 25°C), a 50% DOD cycle life of over 3,000 cycles, and a float service life of 12–15 years. Supports fast charging and comes with CE, UL, ISO, and IEC certifications. Available in a grey body with black cover, it offers 1–3 years warranty depending on application, providing reliable, long-lasting power for industrial and renewable energy applications.
| Specification | Details |
|---|---|
| Model | Starmax SHTL12‑300 (12V 300Ah High‑Temp Deep Cycle GEL/AGM Battery) |
| Chemistry / Battery Type | Lead‑acid, Gel / AGM deep cycle (VRLA, sealed, high temperature design) |
| Nominal Voltage | 12 V (6 cells per unit) |
| Rated Capacity | 300 Ah @ 20 hr rate (21 A, 5.4 V) |
| Capacity @ 25 °C | • 10 hr rate: 270 Ah • 5 hr rate: 239 Ah • 1 hr rate: 173.3 Ah |
| Internal Resistance | ≤ 1.6 mΩ (fully charged @ 25 °C) |
| Max. Discharge Current | 1,800 A (5 s peak) |
| Design Floating Life | 15 – 20 years @ 25 °C |
| Operating Temperature | • Discharge: −25 °C ~ 60 °C • Charge: −25 °C ~ 60 °C • Storage: −25 °C ~ 60 °C |
| Capacity vs Temperature (10 hr) | 40 °C: 108% | 25 °C: 100% | 0 °C: 90% | −15 °C: 70% |
| Self‑Discharge | ≈ 3% per month @ 25 °C |
| Charge (Constant Voltage) | • Standby: 13.6 – 13.8 V, initial ≤ 65 A • Cycle Use: 13.6 – 13.8 V, initial ≤ 65 A |
| Dimensions (L×W×H) | 520 × 269 × 220 mm (Total height: 226 mm) |
| Weight | ≈ 77.3 kg ± 3% |
| Terminal Type | M8 (typical) |
| Certifications | CE / UL / ISO / IEC (varies by listing / vendor) |
| Typical Applications | Solar & wind systems, telecom / BTS, UPS, off‑grid, marine, RV, EV support |
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