Use the real temperature profile
Provide normal, maximum and seasonal ambient temperatures plus time spent at each level.
GFMH / GFMZH · −20°C to 65°C
A catalogue-defined VRLA family for elevated-temperature cycle and float applications, with 2V, 6V and 12V configurations and a recommended operating band of −10°C to 45°C.

Product range
The GFMH family is described for long-term operation from −20°C to 65°C without relying on an air-conditioned room. The catalogue recommends −10°C to 45°C and states a 10-year design life at 35°C. Options include 6V 100–200Ah, 12V 55–250Ah and 2V 100–3000Ah cells. GFMZH adds narrow front-terminal 12V models from 55Ah to 150Ah.
Model comparison
These figures come from the manufacturer catalogue. Ask for the current datasheet before final approval or purchase.
| Representative model | Voltage / capacity | Size L×W×H (mm) | Terminal | Weight | Format |
|---|---|---|---|---|---|
| 6-GFMH-55 | 12V 55Ah | 229 × 138 × 208/212 | G/M6 | 17.5kg | Standard block |
| 6-GFMH-100 | 12V 100Ah | 339 × 173 × 212 | M8 | 32.5kg | Standard block |
| 6-GFMH-200 | 12V 200Ah | 522 × 240 × 218 | M8 | 66kg | Standard block |
| GFMH-600 | 2V 600Ah | 301 × 175 × 330 | M8 | 37.5kg | Stationary cell |
| GFMH-1500 | 2V 1500Ah | 401 × 351 × 342 | G | 98.5kg | Stationary cell |
| 6-GFMZH-100 | 12V 100Ah | 394 × 110 × 286 | M8 | 35kg | Front terminal |
How to choose
Send the information you already have. We can narrow the model list and point out what still needs to be checked.
Provide normal, maximum and seasonal ambient temperatures plus time spent at each level.
Higher temperature changes float-voltage requirements and accelerates aging if charging is not controlled.
Choose standard blocks, narrow front-terminal cases or 2V cells based on rack, service and string architecture.
Typical applications
Tell us about the equipment and duty cycle. We will help check whether this series is a practical fit.
Review cabinet heat, solar gain, rectifier settings, autonomy and service access.
Define string voltage, float conditions, room temperature and monitoring.
Compare thermal-management cost with the battery duty and expected replacement interval.
What you can ask for
Commercial terms vary by model, quantity and destination. Include these questions in your inquiry and we will reply with the current available information.
For an accurate quote
Product FAQ
We will confirm current availability, documents and commercial terms for the exact model you select.
No. It is a catalogue operating statement. Capacity, life and charging requirements remain temperature-dependent.
The catalogue states a recommended range of −10°C to 45°C.
A 10-year design life under 35°C is stated. Actual service depends on float voltage, temperature history and discharge duty.
No. Installation, ventilation, safety, charging control and access still require project review.
Front-terminal GFMZH may suit narrow cabinets, while standard GFMH blocks or 2V cells may fit other architectures. Confirm the cabinet and DC string.
Product inquiry
Send the application, voltage, load, runtime, installation space, quantity and destination you know. We will help turn it into a quote-ready request.