China Factory: Wengcheng Industrial Park, Guandu develop-ment Zone,Wengyuan, Shaoguan,Guangdong,China.
China Office: Room 405,Lidu business Center,Congyun Road,Baiyun District,Guangzhou City,China
Malaysia Factory: No.30, Jalan TTP5, Taman Perindustrian Putra, 47130 Puchong Selangor, Malaysia
Hongkong office： Suite913B, 9/F, Ocean Centre, 5 Canton Road, TSIM SHA TSUI, KLN. HONG KONG
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1. What are the concerns when using JYC batteries in a parallel or a serial series?
● Do not mix brands, models and date codes
● No separate discharge then charging in a serial configuration.
● Under parallel usage, pay close attention to the differences in voltage in each circuit.
● If the difference in voltage in each circuit is too high, do not charge/discharge as parallel.
● The environment of all circuits must be similar.
2. How can you check a battery’s performance?
Different usage applications will use different methods for evaluating a battery’s performance. Using a 20 hour rate or the 10 hour rate, you can use 0.05CA or 0.1CA to discharge the battery until the battery reaches a terminal voltage of 10.25 volts. You can then calculate the amp hours to see if the battery fits the specifications or not. For a 5 minutes rate, such as the HC1221W, you can use a 21 watts/cell discharge till the terminal voltage reaches a terminal voltage of 9.6 volts and then measure the discharge time to see if it meets the final specifications or not.
3. How are batteries rated?
Lead acid batteries are rated based on a capacity given in a defined time. There is not a set industry standard for how to rate a battery.
4. When should a deep-cycle battery be used?
Deep-cycle batteries are used when 50% or more of the capacity is used per cycle. The most common use of deep-cycle batteries is in applications that require deep, repetitive drain, like powerful car audio systems, trolling motors, golf carts, electric wheelchairs, or RV house power sources. Public safety and high-performance vehicles are other applications that call for the special characteristics of deep-cycle batteries.
5. How long can a battery last?
The service design life of a battery varies considerably with how it is used, how it is maintained and charged, temperature, among other factors.
6. What determines the life of a VRLA battery?
Sealed lead acid battery life is determined by many factors. These include temperature, depth and rate of discharge, and the number of charges and discharges (called cycles).
7. How can I evaluate the health and charge state of a battery?
Routine battery examinations divulge irregularities in the charging system as well as in the batteries. The principle method is to examine the electrochemistry of the battery through hydrometric electrolyte inspection. As previously discussed, this important examination cannot be accomplished with sealed absorption or gel batteries. Voltage readings alone require experience to interpret. Hydrometric readings will uncover early warnings of overcharging or over-discharging before batteries are damaged. The state-of-charge and reliability of a lead acid battery can best be determined by the specific gravity of the electrolyte measured directly with a common bulb-type hydrometer with a glass float. We do not recommend the ball float type hydrometer. Specific gravity is a unit of measurement for determining the sulfuric acid content of the electrolyte. The recommended fully charged specific gravity of marine batteries is 1.255 to 1.265 taken at 80 C More than .025 spread in readings between fully charged cells indicates that the battery may need an equalization charge. If this condition persists, the cell is failing and the battery should be replaced. Since water has a value of 1.000, electrolyte with a specific gravity of 1.260 means it is 1.260 times heavier than pure water while pure concentrated sulfuric acid has a specific gravity of 1.835.