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Specification: Nominal voltage: 12V Rated capacity: 5.5Ah (20-hour rate) Dimensions: Length: 90mm Width: 70mm Height: 101mm Weight: approximately 1.65kg Characteristics of lead acid battery: Good safety performance: no electrolyte leakage, batteryswelling and cracking under normal use Good discharging performance: with smooth discharging voltageand mild discharging platform Good shock-resistant performance: fully charged and completelyfixed battery with 4mm amplitude and 16.7Hz frequency do havenormal open circuit voltage without leakage, batteries swelling orcracking problem after one-hour vibration Good impact-resistant performance: fully charged battery isproved to maintain normal open circuit voltage and be withoutleakage or batteries swelling or cracking after dropping threetimes from 20cm height naturally to 1cm-thick hardwood board Good resistance to over-discharge: in temperature of 25°:C,fully charged battery discharges with fixed resistance which isequivalent to one required by 1 CA discharge of battery for threeweeks and can restore capacity over 75% Good resistance to overcharge: fully charged battery is provedto maintain normal open circuit voltage and be without leakage orbatteries swelling or cracking in temperature of 25°:C, aftercharging at 0.1 CA for 48 hours and capacity maintain over 95% Good resistance to high current: fully charged battery isproved to be without conductive part melted or any appearancedeformation after discharging at 2 CA for 5 minutes or 10 CA for 5seconds Applications: Alarm systems Emergency lighting systems Electronic instruments Telecommunication systems Solar energy generating systems Wind energy generating systems UPS and computer stand by power supply Fire-fighting equipment stand by power supply Nominal voltage: 12V Rated capacity: 5.5Ah (20-hour rate) Dimensions: Length: 90mm Width: 70mm Height: 101mm Weight: approximately 1.65kg Length: 90mm Width: 70mm Height: 101mm Good safety performance: no electrolyte leakage, batteryswelling and cracking under normal use Good discharging performance: with smooth discharging voltageand mild discharging platform Good shock-resistant performance: fully charged and completelyfixed battery with 4mm amplitude and 16.7Hz frequency do havenormal open circuit voltage without leakage, batteries swelling orcracking problem after one-hour vibration Good impact-resistant performance: fully charged battery isproved to maintain normal open circuit voltage and be withoutleakage or batteries swelling or cracking after dropping threetimes from 20cm height naturally to 1cm-thick hardwood board Good resistance to over-discharge: in temperature of 25°:C,fully charged battery discharges with fixed resistance which isequivalent to one required by 1 CA discharge of battery for threeweeks and can restore capacity over 75% Good resistance to overcharge: fully charged battery is provedto maintain normal open circuit voltage and be without leakage orbatteries swelling or cracking in temperature of 25°:C, aftercharging at 0.1 CA for 48 hours and capacity maintain over 95% Good resistance to high current: fully charged battery isproved to be without conductive part melted or any appearancedeformation after discharging at 2 CA for 5 minutes or 10 CA for 5seconds Alarm systems Emergency lighting systems Electronic instruments Telecommunication systems Solar energy generating systems Wind energy generating systems UPS and computer stand by power supply Fire-fighting equipment stand by power supply