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Description

The Starmax SFLC Fast-Charge Long-Life Lead Carbon Battery is a high-performance deep cycle lead carbon battery ideal for solar power systems, off-grid energy storage, wind power applications, sweepers, golf carts, and light industrial electric vehicles. Built for extreme temperatures (-20°C to 60°C), it features low self-discharge, over 3,000 cycles at 50% DOD, and a float service life of ≥20 years. ISO 9001/14001/18001 and CE/IEC certified, this lead carbon battery delivers reliable, long-lasting power for industrial and renewable energy applications.

Specification Details
Product Name Starmax SFLC6‑300 6V 300Ah Fast‑Charge Long‑Life Lead Carbon Battery
Model / Equivalent HLC6‑300 / HDC6‑300 (Lead Carbon Series)
Nominal Voltage 6V (3 cells per unit)
Nominal Capacity 300Ah @ 20 hr rate (25°C)
Capacity @ 10 hr ≈ 278.5 Ah @ 29.7 A, 5.40 V
Capacity @ 5 hr ≈ 258 Ah @ 51.6 A, 5.25 V
Capacity @ 1 hr ≈ 180.5 Ah @ 180 A, 4.80 V
Internal Resistance ≤ 2.8 mΩ (full charged @ 25°C)
Design Floating Life ≈ 18‑20 years @ 25°C
Cycle Life 50% DoD ≈ 3000 cycles (typical) / >2000 cycles @ 80% DoD
Max Discharge Current ≈ 2250 A (5 s @ 25°C)
Self‑Discharge ~ 3% per month @ 25°C
Recommended Charge
  • Standby/Float: 6.8 – 6.9 V (initial current ≤ 75 A)
  • Cycle Use: 7.20 – 7.35 V (initial current ≤ 75 A)
Operating Temperature
  • Discharge: −30°C – 60°C
  • Charge: −30°C – 60°C
  • Storage: −30°C – 60°C
Dimensions 295 mm (L) × 178 mm (W) × 346 mm (H) / Total Height: 350 mm
Weight ≈ 46.5 kg
Case / Cover Material ABS (UL94‑V0 optional)
Terminal Type T5 / M8 (female copper insert)
Warranty 3 years
Certifications ISO9001/14001/18001, CE, IEC60896‑21/22, IEC61427
Applications Solar & Wind Energy Storage, UPS & Backup Power, Telecom, Emergency Lighting Systems, Marine & RV, Electric Tools, Forklifts, Security Systems, Control Equipment

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