Description
Battery Overview
The AGM VRLA (Absorbent Glass Mat Valve Regulated Lead-Acid) battery, commonly known as a sealed maintenance-free battery, belongs to the lead–acid rechargeable battery family. It operates on the Gas Recombination Principle, regulated by a pre-determined vent valve.
Thanks to its leak-proof design, the battery can be mounted in any orientation (recommended vertically for better access) and does not require constant maintenance.
Battery Construction
| Component | Details |
|---|---|
| Positive Plate | Hybrid Alloy |
| Negative Plate | Lead Calcium Alloy |
| Container & Cover | Flame Retardant Polypropylene Co-Polymer (FR-PPCP) |
| Separator | Absorbent Glass Mat |
| Safety Valve | Self-Resealing, Pressure Regulated, Explosion-Proof |
| Terminal | M8 |
| Electrolyte | Dilute Sulphuric Acid (fully absorbed condition) |
Electrical Specifications
| Description | Module Level |
|---|---|
| Nominal Voltage | 12 V |
| Nominal Capacity | 190Ah at C10 rate to 1.75 ECV @ 27°C |
| Weight (±3%) | 59.0 kg |
| Internal Resistance | 4.58 mΩ |
| Ah Efficiency | >95% |
| Wh Efficiency | >85% |
| Operating Temperature Range | -40°C to +60°C |
| Temperature Compensation | ±18 mV/°C/module |
| Dimensions (L × W × H) | 559 ± 3 mm × 129 ± 3 mm × 327 ± 3 mm |
Charging Characteristics
| Parameter | Value |
|---|---|
| Charge Method | Constant Potential Current Limit |
| Float Charge | 13.5V per module @ 27°C |
| Boost Charge | 13.8V per module @ 27°C |
| Maximum Charging Current | 57.0 A |
Constant Current Discharge Rating (Amperes per Module @ 27°C*)
| EMV (V) | 30 min | 60 min | 3 hrs | 5 hrs | 8 hrs | 10 hrs |
|---|---|---|---|---|---|---|
| 10.50 | 170.0 | 108.0 | 50.0 | 33.0 | 23.0 | 19.0 |
| 10.80 | 167.0 | 105.0 | 48.0 | 32.0 | 22.0 | 18.4 |
Note
* The values declared may be subject to change based on continuous product improvement. Batteries may have an initial capacity ranging from 90% to 95% of the rated capacity at the time of delivery. Full 100% capacity is achieved after a few charge/discharge cycles in accordance with IEEE-485 Clause 6.2.4.
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