Suntherra Battery
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Our HTL12V Patented High-Temp Deep Cycle Solar Gel Battery features an engineered 15-to-20-year design life. This makes it your premier high-performance partner for demanding solar applications and hot climate zones worldwide.
These advanced 12V deep cycle batteries represent the benchmark for reliable energy storage in extreme conditions. Engineered with cutting-edge patented silicon GEL technology, they achieve 1500 to 1600 cycles at 50% Depth of Discharge (DOD). Fully compliant with premium international standards including IEC60896-21/22, BS6290-4, and the Eurobat Guide, these batteries deliver peerless dependability when performance is critical.
| HTL12-250 Technical Parameters Spec Sheet | |||
|---|---|---|---|
| Nominal Voltage | 12V (6 cells per unit) | ||
| Design Floating Life @ 25ºC | 20 Years | ||
| Nominal Capacity @ 25ºC | 20 hour rate @ 21.0A, 5.4V | 250Ah | |
| Discharge Capacity @ 25ºC | 10 hour rate (37.8A, 5.4V) | 226Ah | |
| 5 hour rate (66.8A, 5.25V) | 191Ah | ||
| 1 hour rate (233.3A, 4.8V) | 138.2Ah | ||
| Internal Resistance | Fully Charged Battery @ 25ºC | ≤1.5mΩ | |
| Operating Ambient Temperature Range | Discharge | -25ºC to 60ºC | |
| Charge | -25ºC to 60ºC | ||
| Storage | -25ºC to 60ºC | ||
| Max. Discharge Current @ 25ºC | 1440A (5s) | ||
| Temperature-Induced Capacity Shifts | 40ºC | 108% | |
| 25ºC | 100% | ||
| 0ºC | 90% | ||
| -15ºC | 70% | ||
| Self-Discharge Rate (per month @ 25ºC) | 3% | ||
| Constant Charging Voltage @ 25ºC | Standby Use | Initial Charging Current < 55A | Voltage 13.6 - 13.8V | |
| Cycle Use | Initial Charging Current < 55A | Voltage 13.6 - 13.8V | ||
| Dimensions (L * W * H) | 520mm ± 1mm * 269mm ± 1mm * 203mm ± 1mm (Total height with terminal: 209mm ± 1mm) | ||
| Weight Tolerance Range | 71.3 kg ± 3% | ||
| Component | Positive Plate | Negative Plate | Container & Cover | Safety Valve | Terminal | Separator | Electrolyte | Pillar Seal |
|---|---|---|---|---|---|---|---|---|
| Features | Thick high Sn low Ca grid with Special paste | Balanced Pb-Ca grid for improved recombination efficiency | Fire resistance ABS (UL94-V0 optional) | Flame, Si-Rubber and aging resistance | Female Copper Insert | Advanced PVC / AGM separator for high pressure cell design | Silicon Gel | Two layers epoxy resin seal |
These premium deep-cycle gel batteries are engineered for robust, long-lasting deployment across various utility and critical system sectors.
A highly advanced, specialized manufacturing infrastructure dedicated to the production and export of high-quality environmentally friendly Rechargeable Deep Cycle AGM Sealed Lead Acid (SLA) Batteries, Solar GEL Batteries, Front Terminal Batteries, High-Temperature GEL Batteries, OPzV Cells, Lithium Powerwalls, and complete solar solutions.
Serving domestic and international markets, these storage batteries power vital networks in over a hundred countries including the USA, Brazil, Italy, Greece, Germany, Spain, Russia, Pakistan, Iran, Korea, Thailand, South Africa, Nigeria, Ghana, and many more. Our robust ODM and OEM capabilities enable fast development and delivery customized to specific real-time requirements.
| Model | Nominal Voltage (V) | Capacity (Ah) | Dimension (mm) | Weight (kg) | Terminal | ||||
|---|---|---|---|---|---|---|---|---|---|
| Length | Width | Height | Total Height | Net Weight | Gross Weight | ||||
| HTL12-14 | 12 | 14/20HR | 152 | 99 | 96 | 102 | 4.1 | 4.3 | F1/F2 |
| HTL12-20 | 12 | 20/20HR | 181 | 77 | 167 | 167 | 6.3 | 6.5 | T1/L1 |
| HTL12-24 | 12 | 24/20HR | 166 | 175 | 126 | 126 | 8.6 | 8.8 | M6 |
| HTL12-26 | 12 | 26/20HR | 165 | 126 | 174 | 179 | 8.7 | 8.9 | M6 |
| HTL12-35 | 12 | 35/20HR | 196 | 130 | 155 | 167 | 10.8 | 11.1 | M6 |
| HTL12-40 | 12 | 40/20HR | 198 | 166 | 174 | 174 | 14.5 | 14.8 | M6 |
| HTL12-55 | 12 | 55/20HR | 229 | 138 | 208 | 212 | 16.3 | 16.6 | M6 |
| HTL12-70 | 12 | 70/20HR | 350 | 167 | 178 | 178 | 23.6 | 23.9 | M6 |
| HTL12-75 | 12 | 75/20HR | 260 | 169 | 211 | 215 | 25.3 | 25.8 | M6 |
| HTL12-85 | 12 | 85/20HR | 260 | 169 | 211 | 215 | 26.4 | 26.9 | M6 |
| HTL12-90 | 12 | 90/20HR | 307 | 169 | 211 | 216 | 28.5 | 29.0 | M6/M8 |
| HTL12-100 | 12 | 100/20HR | 307 | 169 | 211 | 216 | 30.5 | 31.0 | M6/M8 |
| HTL12-110 | 12 | 110/20HR | 328 | 176 | 214 | 220 | 33.0 | 33.2 | M8 |
| HTL12-120 | 12 | 120/20HR | 407 | 173 | 210 | 233 | 39.5 | 39.7 | M8 |
| HTL12-135 | 12 | 135/20HR | 341 | 173 | 283 | 288 | 41.1 | 41.3 | M8 |
| HTL12-150 | 12 | 150/20HR | 484 | 171 | 241 | 241 | 45.8 | 46.0 | M8 |
| HTL12-180 | 12 | 180/20HR | 532 | 206 | 215 | 220 | 56.3 | 56.6 | M8 |
| HTL12-200 | 12 | 200/20HR | 532 | 206 | 215 | 220 | 58.7 | 59.0 | M8 |
| HTL12-230 | 12 | 230/20HR | 522 | 240 | 219 | 225 | 65.3 | 65.6 | M8 |
| HTL12-250 | 12 | 250/20HR | 520 | 269 | 203 | 207 | 71.3 | 71.6 | M8 |
| HTL12-300 | 12 | 300/20HR | 520 | 268 | 220 | 226 | 77.3 | 77.8 | M8 |
Yes, our storage batteries are fully certified and safe for transit. They are accompanied by valid MSDS and transportation test reports verifying compliance for safe shipping as non-hazardous products by both sea cargo and air freight.
Fast charging is not recommended for deep cycle gel batteries. Using high currents can overheat the cell, compromise the integrity of the solid gel electrolyte, and significantly reduce the battery's overall service life.
We do not recommend partial replacement in battery banks. Mixing new batteries with older ones can cause critical charge imbalances, causing the new cells to degrade faster and reducing the overall efficiency of your electrical storage system.
Battery capacity (Ah) depends dynamically on the rate of discharge current. A lower current draw (e.g. 20-hour rate) allows the battery to perform optimal chemical conversion, delivering more total Amp-hours than under rapid, heavy loads (e.g. 2-hour rate).
VRLA gel batteries have a very low self-discharge rate, losing less than 3% capacity per month at 25°C. To ensure longevity, they should not be stored for more than 6 months without a refresh charge. In hot climates, we advise recharging every 3 months.
Production strictly adheres to ISO 9001 standards. This involves Incoming Quality Control (IQC) to inspect raw materials, Production Quality Control (PQC) for in-process checkpoints, and final Outgoing Quality Control (OQC) to guarantee defect-free shipments.
