Type: | Lead-Acid Batteries |
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Usage: | Car, Bus, Electric Bicycle, Boat, Valve Regulated Lead Acid Battery Automobile |
Shape: | Square Battery |
Samples: |
free samples, we don′t afford courier charge.
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Specifications (mm) | Parameters | |||||
Head Diameter | Screw Diameter | Screw Pitch | Length | Condition | Test Project | Standard |
24mm | M18mm | 20mm | Basic detetion | Opening Valve pressure | 12.5±2Kpa | |
Closing Valve pressure | 11.5±2Kpa | |||||
Valve pressure defference | ≤1.0Kpa | |||||
Acid and corrosion resistance test | Opening Valve pressure | 12.5±2Kpa | ||||
Closing Valve pressure | 11.5±2Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
High and low temperature resistance test (high temperature 900C and low temperature -300C | Opening Valve pressure | 12.5±2Kpa | ||||
Closing Valve pressure | 11.5±2Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
Aging resistance test (high temperature 90 ºC low temperature - 30 ºC) | Opening Valve pressure | 12.5±2Kpa | ||||
Closing Valve pressure | 10.5±2Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
Battery water consumption test (75 ºC high temperature cycle test |
Mass change fraction | ≤3% | ||||
Working environment test | ~40ºC~+80ºC | normal | ||||
Rubber gasket | Shaw A hardness | 53±30 | ||||
Elongation at break after corrosion | ≥300% | |||||
Tensile strength after corrosion | ≥5Mpa | |||||
Compression set (90 ºC/22h) | ≤30% |
Suppliers with verified business licenses