CP645 Shenzhen Center Power Tech.Co.Ltd, 6V 4.5Ah(20hr) Overview The rechargeable batteries are lead-lead dioxide systems The dilute sulfuric acid electrolyte is absorbed by separators and plates and thus immobilized Should the battery be accidentally overcharged producing hydrogen and oxygen, special oneway valves allow the gases to escape thus avoiding excessive pressure build-up Otherwise, the battery is completely sealed and is, therefore, maintenance-free, leak proof and usable in any position Battery Construction Component Positive plate Negative plate Raw material Lead dioxide Lead Container Cover ABS General Features Maintenance-free operation Low self discharge Case and cover available in both standard and flame retardant ABS Dimensions and Weight * Weight deviation: ± 5% Terminal Separator Electrolyte Rubber Copper Fiberglass Sulfuric acid Battery Specification Absorbent Glass Mat (AGM) technology for efficient gas recombination of up to 99% and freedom from electrolyte maintenance or water adding Not restricted for air transport-complies with IATA/ICAO Special Provision A67 UL-recognized component Can be mounted in any orientation Computer designed lead, calcium tin alloy grid for high power density Long service life, float or cyclic applications Length(mm / inch) Width(mm / inch) Height(mm / inch) Total Height(mm / inch) Approx Weight(Kg / lbs) Safety valve ABS 70 / 2.76 47 / 1.85 101 / 3.98 107 / 4.21 0.77 / 1.70 Performance Characteristics 6V Nominal Voltage Number of cell years Design Life Nominal Capacity 77℉(25℃) 20 hour rate (0.22A, 5.25V) 4.5Ah 10 hour rate (0.44A, 5.25V) 4.4Ah hour rate (0.72A, 5.25V) 3.60Ah hour rate (3.06A, 4.8V) 3.06Ah Internal Resistance Fully Charged battery 77℉(25℃) ≤27mOhms Self-Discharge 3% of capacity declined per month at 20℃(average) Operating Temperature Range Discharge -20~60℃ Charge -10~60℃ Storage -20~60℃ 67.5A(5s) Max Discharge Current 77℉(25℃) 225A Short Circuit Current Charge Methods: Constant Voltage Charge 77℉(25℃) Cycle use 2.40-2.45VPC Maximum charging current 1.80A Temperature compensation -15mV/℃ Standby use 2.23-2.30VPC Temperature compensation -10mV/℃ Discharge Constant Current (Amperes at 77oF25oC) End Point Volts/Cell 5min 10min 15min 30min 1h 3h 5h 1.60V 16.0 11.2 9.00 4.80 3.06 1.24 0.78 0.47 0.233 10h 20h 0.46 0.231 1.65V 15.2 10.7 8.60 4.61 2.95 1.20 0.76 1.70V 14.3 10.1 8.19 4.41 2.83 1.16 0.74 0.45 0.228 1.75V 13.4 9.5 7.77 4.19 2.71 1.11 0.72 0.44 0.225 1.80V 2.50 9.0 7.33 3.98 2.58 1.06 0.69 0.43 0.221 o Discharge Constant Power (Watts at 77 F25oC) End Point Volts/Cell 5min 10min 15min 1.60V 32.0 22.3 17.1 30min 9.67 45min 7.50 1h 5.80 2h 3.41 3h 5h 2.46 1.59 1.65V 30.0 21.0 16.3 9.18 7.14 5.56 3.31 2.40 1.56 1.70V 28.0 19.7 15.5 8.69 6.78 5.30 3.20 2.34 1.53 1.75V 26.0 18.4 14.8 8.18 6.40 5.05 3.08 2.27 1.50 1.80V 24.1 17.1 13.8 7.68 6.00 4.78 2.94 2.19 1.46 (Note)The above characteristics data are average values obtained within three charge/discharge cycles not the mimimum values.All data shall be changed without notice,Vision reserves the right to explain and update the information contained hereinto Shenzhen Center Power Tech.Co.Ltd, STOCK CODE: 002733 www.vision-batt.com 6.5 6V 4.5Ah(20hr) Constant voltage charging characteristic (0.25CA,25 ℃) (%) (XCA) (V) 140 6.0 5.5 Voltage(v) Current Charged Volume Discharge characteristic (25℃) Voltage CP645 Shenzhen Center Power Tech.Co.Ltd, 120 0.25 100 0.20 5.0 80 4.5 0.15 60 4.0 0.10 40 10 20 30 60 10 20 30 20 0.05 0 h 7.5 Charged Volume 7.0 Charge Voltage 6.5 6.0 5.5 Charging Current 10 Discharge time 14 16 18 20 Charging time (hours) Relationship between charging voltage and temperature Self-discharge characteristic 100 7.8 Capacity(%) Cycl 7.5 e Us e 7.2 STANDB 6.9 Y USE 90 80 70 60 6.6 -10 12 50 40 30 20 10 Ambient temperature(℃) 40 60 50 10 12 14 Storage time: months 16 18 20 Cycle service life in relation to depth of discharge Life characteristics of Standby use 120 120 100 Capacity(%) 80 60 Testing conditions:floating voltage:2.27 to 2.30V Cell ambient temperature: 25oC(77oF) 80 60 40 40 20 20 Life(year) 30% Depth of discharge 100% D.O.D 50% D.O.D 200 Temperature effects on float life 400 600 800 1000 Number of cycles(cycles) 1200 1400 Temperature effects on capacit 10 120 100 2.30V Cell Capacity (%) Capacity(%) 100 C 0.05 0.1C C 02 80 60 1.0C 2.0C 40 3.0C 20 0.1 10 20 30 40 50 60 Temperature ( ℃) Shenzhen Center Power Tech.Co.Ltd, -20 -10 10 20 30 40 50 Temperature ( ℃) STOCK CODE: 002733 www.vision-batt.com ... -10 12 50 40 30 20 10 Ambient temperature(℃) 40 60 50 10 12 14 Storage time: months 16 18 20 Cycle service life in relation to depth of discharge Life characteristics of Standby use 12 0 12 0 10 0... (V) 14 0 6.0 5.5 Voltage(v) Current Charged Volume Discharge characteristic (25℃) Voltage CP645 Shenzhen Center Power Tech.Co.Ltd, 12 0 0.25 10 0 0.20 5.0 80 4.5 0 .15 60 4.0 0 .10 40 10 20 30 60 10 ... discharge 10 0% D.O.D 50% D.O.D 200 Temperature effects on float life 400 600 800 10 00 Number of cycles(cycles) 12 00 14 00 Temperature effects on capacit 10 12 0 10 0 2.30V Cell Capacity (%) Capacity(%) 10 0