
The first sealed, or maintenance-free, lead acid emerged in the
mid-1970s. Engineers argued that the term “sealed lead acid” was a
misnomer because no lead acid battery can be totally sealed. To
control venting during stressful charge and rapid discharge, valves
have been added that release gases if pressure builds up. Rather
than submerging the plates in a liquid, the electrolyte is
impregnated into a moistened separator, a design that resembles
nickel- and lithium-based systems. This enables operating the
battery in any physical orientation without leakage.
The sealed battery contains less electrolyte than the flooded type,
hence the term “acid-starved.” Perhaps the most significant
advantage of sealed lead acid is the ability to combine oxygen and
hydrogen to create water and prevent dry out during cycling. The
recombination occurs at a moderate pressure of 0.14 bar (2psi). The
valve serves as a safety vent if the gas buildup rises. Repeated
venting should be avoided as this will lead to an eventual dry-out.
Characteristic of Maintenance free black 12v 6.5Ah rechargeable valve regulated lead acid battery manufacturer
1. Maintenance-free,completely sealed (all gases recycled internally)
2. AGM separator design eliminates acid spills
3. High integrity terminal seal
4. Self-regulating relief valve
5. Low self-discharge rate
6. Good effect of cold- starting performance
7. No PCL phenomenon
Item | Maintenance free black 12v 6.5Ah rechargeable valve regulated lead acid battery manufacturer |
Code | 6-FM-6.5 |
Color | Black |
Type | Lead acid battery |
Dimension(±1mm)L*W*H | 138*61*101mm |
Approx. Weight(kg) | 2.06KG |
Seperator | AGM |
Norminal Voltage | 12V |
Capacity(Ah) 10hours | 6.5Ah |
Container | ABS |
Useage | Motorcycle / Scooter /three Wheel Motorcycle |
No. of plate | 48 |
500 | |
Warranty | 12 months |
Answers to Common Questions about Batteries
1, Do lead acid batteries discharge when not in use?
All batteries, regardless of their chemistry, will self-discharge. The rate of self-discharge for lead acid batteries depends on the storage or operating temperature. At a temperature of 80 degrees F. a lead acid battery will self-discharge at a rate of approximately 4% a week. A battery with a 125-amp hour rating would self-discharge at a rate of approximately five amps per week. Keeping this in mind if a 125 AH battery is stored for four months (16 weeks) winter without being charged, it will loose 80 amps of its 125-amp capacity. It will also have severe sulfation, which causes additional loss of capacity. Keep your batteries charged while not in use!
2, Do lead acid batteries develop a memory?
Lead acid batteries do not develop any type of memory.
3, Do I need to completely discharge my lead acid battery before recharging it?
No, in fact you should never discharge your lead acid battery below 80% of its rated capacity. Discharging it below this point or 10.5 volts can damage it.
4, When do I need to perform an equalization charge?
Equalizing should be performed when a battery is first purchased (called a freshening charge) and on a regular basis (every 10 discharge cycles or at least once a month). Reduced performance can also be an indicator that an equalizing charge is needed.
5, What is an equalizing charge?
An equalizing charge for a 12 volt battery requires that it be charged with a voltage of at least 14.4 volts for a period of at least one hour once a month, or every 10 discharge cycles. An equalizing charge prevents battery stratification and reduces sulfation, the leading cause of battery failure.