Valve Regulated Lead Battery | 12V 7AH | Maintenance-free |Dimension: 151x65x95x101mm
Prostar GP7-12 best rechargeable lead acid battery 12v 7ah is only enough electrolyte in the mat to keep it wet, and if the battery is punctured the electrolyte will not flow out of the mats.
The storage battery or secondary battery is such a battery where electrical energy can be stored as chemical energy and this chemical energy is then converted to electrical energy as and when required. The conversion of electrical energy into chemical energy by applying external electrical source is known as charging of battery. Whereas conversion of chemical energy into electrical energy for supplying the external load is known as discharging of secondary battery.
Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, lead-acid batteries have an economically acceptable power-to-weight ratio. This feature, along with their low cost, makes the lead-acid batteries to be attractive for use in motor vehicles to provide the high current required by automobile starter motors and suitable for a number of stand-by applications.
Lead-acid batteries are composed of a Lead-dioxide cathode, a sponge metallic Lead anode and a Sulphuric acid solution electrolyte. This heavy metal element makes them toxic and improper disposal can be hazardous to the environment.
The valve regulated spill proof construction allows trouble-free safe operation in any position. There is no need to add electrolyte, as gases generated during the charge phase are recombined in a unique “ oxygen cycle”.
Prostar sealed lead acid battery can be operated in virtually any orientation without the loss of capacity or electrolyte leakage. However, upside down operation is not recommended.
A low self-discharge rate, up to approximately 3% per month, may allow storage of fully charged batteries for up to a year, depending on storage temperatures, before charging becomes critical. However, we strongly recommend that all batteries should be recharged within six months of receipt as it will enhance their long term life.
Same model batteries may be used in series and/or parallel to obtain choice of voltage and capacity. The same battery may be used in either cyclic or standby applications.
Special separators, advanced plate composition and a carefully balanced electrolyte system ensure that the battery has the ability to recover from excessively deep discharge.
The high watt-hour per dollar value is made possible by the materials used in a sealed lead-acid battery; they are readily available and low in cost.
No special handling precautions or shipping containers, surface or air, are required due to the leak-proof construction.
Prostar batteries utilize state of the art design, high grade materials, and a carefully controlled plate-making process to provide excellent output per cell. The high energy density results in superior power/volume and power/weight ratios.
All batteries feature a series of low pressure one-way relief valves. These valves safely release any excessive accumulation of gas inside the battery and then reseal.
Low internal resistance allows discharge currents of up to 10 times the rated capacity of the battery. Relatively small batteries may thus be specified in applications requiring high peak currents.
The high impact resistant battery case is made of nonconductive ABS plastic. The case materials impart great resistance to shock, vibration, chemicals and heat.
TerminalDepending on the model, batteries come either with AMP Faston type terminals made of tin plated brass, post type terminals of the same composition with threaded nut and bolt hardware, or heavy duty flag terminals made of lead alloy. | ElectrolyteImmobilized dilute sulfuric acid: H2S04. Leakproof Design & Operational SafetyThe leak proof construction of Prostar batteries has ensured that our batteries have been approved for shipment by air. |
Plates (electrodes)Prostar utilizes the latest technology and equipment to cast grids from a lead-calcium alloy free of antimony. The small amount of calcium and tin in the grid alloy imparts strength to the plate and guarantees durability even in extensive cycle service. Lead dioxide paste is added to the grid to form the electrically active material. | Relief valveIn case of excessive gas pressure build-up inside the battery, the relief valve will open and relieve the pressure. The one-way valve not only ensures that no air gets into the battery where the oxygen would react with the plates causing internal discharge, but also represents an important safety device in the event of excessive overcharge. Vent release pressure is between 2-6 psi; the seal ring material is neoprene rubber. |
Leakproof Design & Operational SafetyThe leak proof construction of Prostar batteries has ensured that our batteries have been approved for shipment by air. | ContainerCase and lid material is ABS, high impact, resin with high resistance to chemicals and flammability. Case and cover are made of non-conductive ABS plastic. This case has molded-in dividers for each 2 volt cell. |
SeparatorsProstar battery separators are made of non-woven glass fiber cloth with high heat and oxidation resistance. The material further offers superior electrolyte absorption and retaining ability, as well as excellent ion conductivity. | Case SealingDepending on the model the case sealing is ultrasonic, epoxy or heat |
Product Tags: | battery 12v 7ah | lead acid battery | rechargeable battery |
Nominal Voltage | 12V | ||
Nominal Capacity (20 hour rate) | 7Ah | ||
Capacity 25℃(77°F) | 10 hour rate (0.67A) | 6.7Ah | |
5 hour rate (1.25A) | 6.25Ah | ||
1 hour rate (4.62A) | 4.62Ah | ||
Internal Resistance | Full Charged Battery 25℃ | ≤22mΩ | |
Capacity affected by Temperature (10 hour ) | 40℃ (104°F) | 102% | |
25℃ (77°F) | 100% | ||
0℃ (32°F) | 85% | ||
-15℃ (5°F) | 65% | ||
Self-Discharge 25℃(77°F) Capacity | after 3 month storage | 90% | |
after 6 month storage | 80% | ||
after 12 month storage | 62% | ||
Charge (Constant Voltage) 25℃(77°F) | Float | Initial Charging Current Less than 2.1A Voltage 13.6-13.8V | |
Cycle | Initial Charging Current Less than 2.1A Voltage 14.4-15.0V |
Battery Dimensions | Length | 151mm |
Width | 65mm | |
Height | 95mm | |
Total Height | 101mm | |
Box Dimensions | Length | 364mm |
Width | 165mm | |
Height | 141mm | |
Quantity Per Box | 5 pcs per box | |
Net weight Per Cell | 2.15kg±100g | |
Net weight Per Box | 10.75kg | |
Gross Weight | 11.2kg |
F.V/Time | 5min | 10min | 15min | 30min | 45min | 1h | 2h | 3h | 5h | 8h | 10h | 20h |
1.60V | 23.10 | 15.40 | 11.59 | 7.70 | 5.39 | 4.62 | 2.89 | 1.98 | 1.32 | 0.89 | 0.73 | 0.39 |
1.65V | 22.68 | 15.12 | 11.38 | 7.56 | 5.29 | 4.54 | 2.84 | 1.94 | 1.30 | 0.87 | 0.72 | 0.38 |
1.70V | 22.26 | 14.84 | 11.17 | 7.42 | 5.19 | 4.45 | 2.78 | 1.91 | 1.27 | 0.85 | 0.71 | 0.37 |
1.75V | 21.84 | 14.56 | 10.96 | 7.28 | 5.10 | 4.37 | 2.73 | 1.87 | 1.25 | 0.84 | 0.69 | 0.36 |
1.80V | 21.00 | 14.00 | 10.53 | 7.00 | 4.90 | 4.20 | 2.63 | 1.80 | 1.20 | 0.81 | 0.67 | 0.35 |
F.V/Time | 5min | 10min | 15min | 30min | 45min | 1h | 2h | 3h | 5h | 8h | 10h | 20h |
1.60V | 44.47 | 29.65 | 22.31 | 14.82 | 10.38 | 8.89 | 5.56 | 3.81 | 2.54 | 1.71 | 1.41 | 0.74 |
1.65V | 43.66 | 29.11 | 21.90 | 14.55 | 10.19 | 8.73 | 5.46 | 3.74 | 2.49 | 1.68 | 1.39 | 0.73 |
1.70V | 42.85 | 28.57 | 21.49 | 14.28 | 10.00 | 8.57 | 5.36 | 3.67 | 2.45 | 1.65 | 1.36 | 0.71 |
1.75V | 42.04 | 28.03 | 21.09 | 14.01 | 9.81 | 8.41 | 5.26 | 3.60 | 2.40 | 1.61 | 1.33 | 0.70 |
1.80V | 40.43 | 26.95 | 20.28 | 13.48 | 9.43 | 8.09 | 5.05 | 3.46 | 2.31 | 1.55 | 1.28 | 0.67 |