Rechargeable Sealed Lead Acid Battery ?????

[ajak]

Kabibili ko lang ng Rechargeable Sealed Lead Acid Battery. Panasonic Sealed Lead Acid Battery na 6V 4A

1. Do i need to charge it or idrain muna?
2. Pwede din ba adaptor na lang gamitin ko pangcharge?

[beginner wan]

pwede na siguro gamitin agad.. yung gamit namin sa office, ginagamit na namin agad eh.. di na dine-drain..

[ajak]

Sabi kasi sa pinagbilihan ko ng sla e kailangan pa daw icharge at me mga napagtanungan ako na kailangan din daw. Pero meron sya laman. i measure the battery meron sya laman 6 V.
So kapag ichinarge ko ba sya e masisira sya?

[beginner wan]

di naman sya masisira.. pwede mo sya i-charge kahit may charge pa sya.. ginagawa namin yun, after magamit yung lead acid naman, kahit konti lang, china-charge na namin..

may magandang articles dito about batteries and how to use and maximize their performance.. lithium batts palang ako eh..hehehe..

www.batteryuniversity.com

[ajak]

Pwede din ba AC-DC adapter na lang gamitin ko pangcharge?
Pwede na ba to?
input: ac 220~50 Hz
output: dc 3V - 12 V
current: dc 1200 ma

[beginner wan]

from batteryuniversity.com

Charging lead-acid batteries with a power supply

Lead-acid batteries can be charged manually with a commercial power supply featuring voltage regulation and current limiting. Calculate the charge voltage according to the number of cells and desired voltage limit. Charging a 12-volt battery (6 cells) at a cell voltage limit of 2.40V, for example, would require a voltage setting of 14.40V.

The charge current for small lead-acid batteries should be set between 10% and 30% of the rated capacity (30% of a 2Ah battery would be 600mA). Larger batteries, such as those used in the automotive industry, are generally charged at lower current ratings. Cells constructed of a non-antimonial lead grid material allow higher charge currents but have a lower capacity. The cylindrical Cyclone is sealed and can sustain a pressure of up to 3.5 Bar (50 psi). A pressurized cell assists in the recombination of gases.

Observe the battery temperature, voltage and current during charge. Charge only at ambient temperatures and in a ventilated room. Once the battery is fully charged and the current has dropped to 3% of the rated current, the charge is completed. A good car battery will drop to about 40mA when fully charged; a bad battery may not fall below 100mA.

After full charge, remove the battery from the charger. If float charge is needed for operational readiness, lower the charge voltage to about 13.50V (2.25V/cell). Most chargers perform this function automatically. The float charge can be applied for an unlimited time.

eto po yung whole article regarding sa lead acid battery charging.. pasensya na po, di pa ko umaabot sa article na yan..  saka may gawang charger ng lead acid sa office kaya saksak lang ako..hehehe..

eto yung buong article about sa lead acid battery charging..

http://www.batteryuniversity.com/partone-13.htm

[ajak]

http://www.mpoweruk.com/leadacid.htm

[jeje-BUSTER]

initially, battery manufacturers put leave a minimum but good amount of charge sa mga batteries.. This is for the purpose of testing before selling.. anyway, its good to fully charge a battery for the first time before using..
On the other hand, hindi naman masisira ang battery kung gagamitin mo na out of the box, and then charge it later....

[marleona]

Kabibili ko lang ng Rechargeable Sealed Lead Acid Battery. Panasonic Sealed Lead Acid Battery na 6V 4A

1. Do i need to charge it or idrain muna?
2. Pwede din ba adaptor na lang gamitin ko pangcharge?

Saan po kayo nakabili ng SLA??? Hanggang anong range ng voltage and amperes ang available??? Thanks

[Mr. D]

^ sa ELFOH battery center sir madaming mga chargeable battery. may 6V, 6A at 12V, 9A sila dun.

[anthonydp]

Pwede din ba AC-DC adapter na lang gamitin ko pangcharge?
Pwede na ba to?
input: ac 220~50 Hz
output: dc 3V - 12 V
current: dc 1200 ma

puede po. from here

Minimum voltage
Anything above 2.15 volts per cell will charge a lead acid battery, this is the voltage of the basic chemistry. However, most of the time a higher voltage is used because it forces the charging reaction at a higher rate. The voltage to avoid is the gassing voltage, which limits how high the voltage can go before undesireable chemical reactions take place. The typical charging voltage is between 2.15 volts per cell (12.9 volts for a 6 cell battery) and 2.35 volts per cell (14.1 volts for a 6 cell battery). These voltages are appropriate to apply to a fully charged battery without damage. If the battery is not charged you can use much higher voltages without damage because the charging reaction occur first.

Unregulated Transformer-Based Chargers

These are the absolute cheapest chargers around. They consist of a wall mount transformer and a diode. The transformer is designed to deliver 13 to 14 volts over a reasonable current range. The biggest problem with this approach is that when the current tapers off, the voltage raises to 15, 16, 17, even 18 volts. At these high voltages electrolysis of the water in the battery starts in. These must not be left to trickle or float charge a battery, they must be disconnected when the battery is fully charged.