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 | SHTL12‑250 |
| Nominal Voltage | 12 V (6 cells per unit) |
| Nominal Capacity | 250 Ah @ 20 hr rate (21.0 A, 5.4 V, 25°C) |
| Rated Capacity @ 25 °C | 10 hr rate: 226 Ah 5 hr rate: 191 Ah 1 hr rate: 138.2 Ah |
| Internal Resistance | ≤1.5 mΩ (fully charged @ 25 °C) |
| Design / Floating Life | 20 years @ 25 °C |
| Max Discharge Current | 1440 A (5 s) @ 25 °C |
| Operating Temperature | −25 °C to 60 °C (Discharge / Charge / Storage) |
| Temperature Capacity Effect (10 hr) | 40 °C: 108% 25 °C: 100% 0 °C: 90% −15 °C: 70% |
| Self‑Discharge | ~3% per month @ 25 °C |
| Charge / Float Voltage @ 25 °C | Standby / Float: 13.6–13.8 V Cycle Use: 13.6–13.8 V (or up to 14.4–14.9 V per variant) |
| Dimensions (L×W×H) | 520 × 269 × 203 mm (Total height ~209 mm) |
| Weight | ~71.3 kg ±3 kg |
| Electrolyte / Battery Type | GEL (Valve Regulated, Deep Cycle) |
| Separator / Construction | Advanced PVC / AGM separator with silicon gel electrolyte |
| Typical Applications | Solar PV systems, energy storage, off‑grid power, telecom & UPS, marine, backup systems |
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