FAQ

1What Is The Delivery Time?
2 containers are 1 month. If you order more than 2 containers, we need to confirm the raw material with supplier for you and confirm with your delivery time. (In stock is 7 days; out of stock is 25-35 days; newly developed products are 45-65 days.)
2Do You Have Certificate?
——We have Certifications, such as UL, CE, IEC, TLC and ROHS as well as ISO90001 quality and ISO14001 environmental protection.
3Can My Local Representative Visit Your Factory?
Yes, welcome to visit our fully automatic production lines, our environment is very beautiful, and workers are very hospitable.
4Are You A Factory?
Yes, we are the largest factory in China to realize fully automated production and have our own industrial park. The factory was established in 2000, over 20 years production experience.
5How Big Is Your Factory?
Our Shaoguan factory in China covers 150,000 square meters, and the Malaysia is 50,000 square meters.
6How 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.
7How 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.
8Do I Need To Add Water to My Battery?
No. Sealed lead acid batteries do not require the use of water.
9Does The Deep-Cycle Battery Have A "Memory"?
No. The performance of deep-cycle batteries will be reduced over time, but deep-cycle batteries do not suffer from “memory effect” such as NiCd batteries do.
10Does Overcharging Damage Batteries?
OVERCHARGING is the most destructive element in battery service. Usually, the boater is not aware that this is occurring as he believes his alternator or battery charger is “automatic.” Unfortunately, these automatic circuits are sensitive to voltage surges, heat, direct lightning strikes and indirect lightening electromagnetic influences and could fail or shift their calibration. When they fail, overcharging begins to affect the batteries. During overcharging, excessive current causes the oxides on the plates of the battery to “shed” and precipitate to the bottom of the cell and also heat the battery, thus removing water from the electrolyte. Once removed, this material (which represents capacity) is no longer active in the battery. In addition, the loss of water from the electrolyte may expose portions of the plates and cause the exposed areas to oxidize and become inactive, thus reducing additional capacity. Sealed batteries are not immune from the same internal results when overcharged. In fact, sealed recombination absorption and gel batteries are particularly sensitive to overcharging. Once moisture is removed from the battery, it cannot be replaced. Portions of the battery damaged due to overcharging are irretrievable. However, if detected early, corrective adjustments to the charging device will save the undamaged portion of the battery. Initial signs of overcharging are excessive usage of water in the battery, continuously warm batteries, or higher than normal battery voltages while under the influence of the charger. If overcharging is suspected, correct immediately.
11How 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.
12Does Over-Discharging Damage Batteries?
OVER-DISCHARGING is a problem which originates from insufficient battery capacity causing the batteries to be overworked. Discharges deeper than 50% (in reality well below 12.0 Volts or 1.200 Specific Gravity) significantly shorten the Cycle Life of a battery without increasing the usable depth of cycle. Infrequent or inadequate complete recharging can also cause over-discharging symptoms called SULFATION. Despite that charging equipment is regulating back properly, over-discharging symptoms are displayed as loss of battery capacity and lower than normal specific gravity. Sulfation occurs when sulfur from the electrolyte combines with the lead on the plates and forms lead-sulfate. Once this condition becomes chronic, marine battery chargers will not remove the hardened sulfate. Sulfation can usually be removed by a proper desolation or equalization charge with external manual battery chargers. To accomplish this task, the flooded plate batteries must be charged at 6 to 10 amps. at 2.4 to 2.5 volts per cell until all cells are gassing freely and their specific gravity returns to their full charge concentration. Sealed AGM batteries should be brought to 2.35 volts per cell and then discharged to 1.75 volts per cell. This process must be repeated until the capacity returns to the battery. Gel batteries may not recover. In most cases, the battery may be returned to complete its service life. CHARGING Alternators and float battery chargers including regulated photo voltaic chargers have automatic controls which taper the charge rate as the batteries come up in charge. It should be noted that a decrease to a few amperes while charging does not mean that the batteries have been fully charged. Battery chargers are of three types. There is the manual type, the trickle type, and the automatic switcher type.
13When 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.
14What Is the Difference Between Float and Cycle Applications?
A float application requires the battery to be on constant charge with an occasional discharge. Cycle applications charge and discharge the battery on a regular basis.