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 | Value (Starmax SHTL12-40 / sourced) |
|---|---|
| Model | Starmax SHTL12-40 |
| Nominal voltage | 12 V. :contentReference[oaicite:0]{index=0} |
| Nominal capacity | 40 Ah (12V 40Ah). :contentReference[oaicite:1]{index=1} |
| Chemistry / Type | High-temperature GEL / Deep-cycle (listed as GEL on CSPower pages). Note: some Starmax entries also appear as VRLA/AGM variants for the ST12-40 family — confirm model family when ordering. :contentReference[oaicite:2]{index=2} |
| Battery form / technology | Deep-cycle, sealed (VRLA/GEL / AGM family variants). :contentReference[oaicite:3]{index=3} |
| Designed floating service life | Starmax/related datasheets show multi-year floating life (Starmax family: ~5 years @25°C typical design life; CSPower HTL series claims very long float life for HTL variants). :contentReference[oaicite:4]{index=4} |
| Cycle life (example / typical) | CSPower HTL Pro 12V40Ah (comparable HTL high-temp gel model) lists: ~1750 cycles at 50% DOD (manufacturer’s HTL high-temp gel spec). Use this as indicative for high-temp gel deep-cycle units. :contentReference[oaicite:5]{index=5} |
| Operating temperature range | CSPower HTL high-temp GEL units: rated to operate approx. -40°C to +60°C (HTL Pro 12V40Ah page). If you need exact Starmax SHTL12-40 temperature specs, request Starmax’s model sheet/sales page (not all marketplaces publish high-temp ratings). :contentReference[oaicite:6]{index=6} |
| Self-discharge | Not specified explicitly for SHTL12-40 on the requested marketplace pages; Starmax family docs show low self-discharge (≤2%/month typical for VRLA types). :contentReference[oaicite:7]{index=7} |
| Dimensions (L×W×H) | Not specified for SHTL12-40 on CSPower / Made-in-China / Alibaba generic listings. (Many 12V40Ah batteries vary by manufacturer; request the product datasheet from the supplier to confirm exact footprint.) :contentReference[oaicite:8]{index=8} |
| Weight | Not specified for SHTL12-40 on the requested sources (12V40Ah lead-acid/GEL typically ~9–13 kg depending on construction; lithium versions are much lighter). Confirm with vendor. :contentReference[oaicite:9]{index=9} |
| Terminal type | Not consistently listed for SHTL12-40 on the requested marketplace pages (front terminal, top terminal and bolt types exist among 12V40Ah models). Confirm with supplier. :contentReference[oaicite:10]{index=10} |
| Warranty | CSPower HTL Pro lists multi-year warranty examples (e.g., 3 years at higher operating temperatures for HTL Pro models); Starmax family pages list manufacturer warranty terms per region—confirm with seller. :contentReference[oaicite:11]{index=11} |
| Certifications | Marketplace listings (Made-in-China, Alibaba) commonly show CE / ISO / IEC / UL available for many 12V40Ah types — actual certificates depend on the factory/supplier. Request certificates from the seller. :contentReference[oaicite:12]{index=12} |
| Typical applications | Solar / off-grid energy storage, UPS, telecom standby, RV / marine deep-cycle use — noted across CSPower and marketplace product listings for 12V40Ah deep-cycle batteries. :contentReference[oaicite:13]{index=13} |
| Notes / ordering tips |
• The label “GEL” vs “AGM/VRLA” matters — GEL and AGM are different electrolytes and behave differently in high-temp and cycling use. Confirm chemistry with supplier. • CSPower’s HTL series is explicitly high-temperature GEL (useful if you need extended high-temp performance). • If you need exact mechanical dims, weight, terminal type, internal resistance, or datasheet for Starmax SHTL12-40, request the vendor datasheet or the Starmax model sheet from the supplier page. :contentReference[oaicite:14]{index=14} |
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