Battery Maintenance Tips

In order for long battery life, whatever the brand it used to be supported with good treatments and charging (charge), to either wet or dry battery or Free Maintenance (MF) battery which are now widely used in new motors.

Dry battery have price quite expensive, it takes a special trick to getting long-lasting battery and not make trouble. And the easiest way to stun the battery does not come up short, after the motor is turned on with the current starter motor which absorbs up to 400~ 500 watts, good machines remain turned on for about 15 minutes.

Most importantly, if once the starter will not on, do not try to push the starter switch constantly. Released it until about 5 seconds, then squeeze again. Given pause 5 seconds so that the battery is stable first." And if already living, better get used road, instead of settling on the spot. At that time the stun has been used back to fill, "says Ajib Rosadi, the lecturer staff at the Polytechnic campus manufactur Astra (Polman).

Conversely, the battery is often used for the ignition but the motor is difficult to live or just turned on a moment. Stun available in battery will be reduced by watts that have been used. If you frequently do, do not be surprised if the battery even faster come up short and difficult to start the engine. If it were so, must immediately discharge not let worn out.

Special dry battery or MF, recharge with special tools. For dry battery charging system is very small and stable, amounting to 0.5 amperes. "I'll stun the battery can be full, it takes 5 to 8 hours depending on size of battery.

Make Laptop Battery Live Longer

Several tips to make your laptop battery can Stand longer:

• Turn off Wi-Fi and bluetooth. Use shortcut key to instantly disable wireless networking.
• Don't play games on computer, music or DVD movies. Multimedia activities drain laptop batteries.
• Disconnect all external device like card modems, firewire, USB devices and optical drives. Use notebook touchpad instead of an external mouse.
• Adjust screen brightness, dimming your display saves battery power.
• Tweek windows Power option. Choose laptop power scheme that turns off the notebook monitor and hard disk after 10 minutes inactive.
• Decrease or mute laptop speaker volume
• turn off all scheduled task
• Turn off auto save features in Microsoft office and other applications
• Turn off or dissable built-in wireless card
• Program from CD or DVD can copied to hard drive and run from hard drive.

To make laptop battery can live longer, actually many factors affect the amount of time that a laptop battery can deliver can deliver power before it must be recharged.

• If you don't use laptop for extended periods of time, i.e. for a week or more, remove the battery pack from laptop.
• Don't put battery in high heat or freeze temperature. Don't put on your car in summer time. Hot battery can discharge very quickly, and cold ones can't create as much power.
• Make sure to plug a laptop charger adapter into a UPS and not directly into a power outlet or surge protector.
• If you have a nickel metal hydride battery, completely drain and recharge the battery once a month to maximize its capacity to hold a charge.
• Fully charge new battery packs before use. New pack needs to be fully charged and discharged (cycled) a few times before it can condition to full capacity.
• Leaving a battery in a laptop while using an electrical outlet for long periods of time will reduce the life cycle of the battery.

Use Dry Cell Battery

The different with wet cell, use dry cell more simple because we don't need to check the level of liquid like on wet battery because if the level too low make this battery will damage. This kind of battery is free of maintenance. If dry battery look like weak and or there is a leakage of electrolyte, it should be better if you change it with new one. The symptom of battery that already broken usually has difficulties to fill the electric again, so the battery can't start the engine motorcycle or your car.

Using this kind battery usually you have a guide book that show you and give an attention that your battery is free of maintenance and broken permanently if the strip of filling cover protector opened. So don't open this protector cover because your battery will damage because can't filled anymore.

Attention:
Batteries release hydrogen gas which can explode during normal operation. A spark or flame can cause the battery explosion with a large enough force to kill or injure you severely.Wear protective clothing and face shield, or leave the battery maintenance to an experienced mechanic.

Curving on a Rough Plane Road

A car can't curve on a slippery plane road (with zero friction). So clearly, what plays as the centripetal force that makes the car able to curve in friction, which is exerted by the road surface to the four tires of the car. You also learned that when curving, the car's tire are rotating (not slipping) so the friction is static friction.

Why can a car slip when moving too fast on a curving horizontal road? This is because the speed of the car exceeds the allowed limit to make the turn. The formula for the speed limit or maximum limit that is allowed to make a safe turn on a rough horizontal curving road can be derived as follows. The source of centripetal force is friction f_s so:

F_s = f_s ----> F_s = μ_sN = μ_smg

by definition, the formula for centripetal force is

Fμ_s = mv²_max /r

Dry Cell Anode and Cathode

Dry cell battery usually just can use once, after the cell have fully used then disposed and should be change with new one. But now there are rechargeable type that can be recharged several times for example 1000 recharge, after 1000 times charge usually can be charged again and should be changed with new one.

Battery have two poles, positive poles and negative poles. Positive poles or positive electrode is called as cathode and negative poles called as anode. In dry battery each pole contains different kind of metal. In alkaline battery, anode metal is made from manganese dioxide and the metal in the cathode in zinc. For anode and cathode in other batteries can be seen on the table below.

Inside the battery there is a separator to separate anode area and cathode area and there is an electrolyte. Negative electrons will go to cathode in short way but block by electrolyte substance. When we make a circuit to contact anode and cathode then electron will flow through this circuit and we can use this power.

Battery	Alkaline	Lithium	Heavy Duty	Nickel Cadmium	Nickel metal hydride
Anode	manganese  dioxide	manganese  dioxide	zinc	nickel	nickel
Cathode	zinc	lithium	carbon	cadmium	titanium