Fuel Cell For Laptop

The two most mutual causes for RV battery failure are undercharging and overcharging.

Undercharging is a result of batteries being repeatedly discharged and not totally recharged amongst cycles. If a battery is not recharged the sulfate material that attaches to the discharged portions of the plates begins to harden into crystals. Over time this sulfate can not be converted back into active plate material and the battery is ruined. This also occurs when a battery remains discharged for an extended amount of time of time, like for the duration of storage. Sulfation is the number one cause of battery failure. The second leading cause of battery failure is overcharging. Overcharging batteries results in severe water loss and plate corrosion. With that said let’s look at how to in the right manner store your RV batteries.

Before we talk regarding storing the batteries we need to talk in regards to battery safety. Lead acid batteries incorporate sulfuric acid which is exceedingly corrosive and may cause severe burns or even blindness. And the hydrogen gas that batteries develop when they’re charging is very explosive. When you work around batteries you need to wear goggles and gloves, remove all jewelry and do not smoke or use any open flames.

Caution: If you in an unintentional manner get battery acid on your skin, flush it with lots of water and if it gets in your eyes flush with low pressure water for 15 minutes and call a doctor.

When you put the RV in long term storage it’s a good idea to remove the batteries and put them in storage too. This is rather simple to do. The primary thing we want to do is visually inspect the batteries for any apparent damage. Any liquid on or around the battery may be an indication that electrolyte is leaking from the battery. A damaged or leaking battery ought to be substituted immediately. Whenever you remove any battery always do not forget to remove the negative terminal or cable first, and then the positive cable.

Battery Tip: When you remove a battery turn off the ignition switch, all electrical switches, and any battery disconnect switches before you disconnect the battery cables. Whenever you remove any battery cables label them primary so you do not forget how they go back on the battery. When you reinstall the battery do it in the reverse order. Install the positive cable basi and then the negative cable.

Clean the batteries with a 50/50 mixture of baking soda and water if necessary, i.e. use one pound of baking soda to one gallon of water. Now you may check the electrolyte level in each cell and add distilled water if necessary. The minimum level required is at the top of the plates. If it’s underneath the plates add sufficient distilled water to cover the plates before you charge the battery.

Test the battery state of charge with a voltmeter or hydrometer and charge any batteries that are at or underneath 80%. An 80% charge is approximately 12.5 volts for a 12 volt battery and 6.25 volts for a 6 volt battery. Lead sulfation starts when a battery state of charge drops beneath 80%. After charging the batteries check and fill each cell to 1/8 inch beneath the fill well with distilled water. Overfilling cells will cause battery acid to overflow.

Caution: Batteries will have to only be charged in a well ventilated area and keep any sparks and open flames away from a battery being charged. Check the electrolyte levels before and after charging batteries.

A discharged or partially charged battery will freeze much more quickly than a charged battery. Store the batteries in a cool arid place but not where they could freeze. Batteries in storage will loose a percentage of current through internal leakage. It’s not not common for a battery to discharge up to 10% a month when it is being stored. Cold temperatures slow this natural discharge routine down and warmer temperatures speed the procedure up. Test the

stored battery state of charge each month and charge batteries that are at or underneath an 80% state of charge.

Completely charge the batteries before re-installing them next spring. For optimal performance you may equalize the batteries after they are completely charged. An equalizing charge is an increase in charging voltage similar to a bulk charge to convert any crystallized lead sulfate back into it is basi components.

If you determine to leave the batteries in the RV while it is in storage do not forget to check the state of charge on a monthly basis and charge any batteries at or under an 80% charge. Some RV converter multi-stage chargers and aftermarket chargers are designed to maintain a float charge on the battery without removing the batteries from the RV. Remember, for the converter charger to work the RV will need to be plugged in to electricity.

For more info on RV batteries check out our Deep Cycle Battery Care & Maintenance DVD.

Happy Camping,

Mark Polk

Copyright 2007 by Mark J. Polk, owner of RV Education 101

Fuel Cell For Laptop

This 9-Cell Smart Lithium-Ion Primary Battery has internal circuit board with chips that grant it to commune with the notebook to monitor battery performance, output voltage and temperature. It also gives the notebook much more precise ‘fuel gauge’ capability to determine how much battery runtime is left before the next recharge is required. This product has been tested and validated on Dell systems to ascertain it will work with your computer and is compatible with Dell Inspiron notebooks.

• Color: Black
• Brand: ClearMax
• Model: GSD6400
• Dimensions: 1.20 pounds

• New 7200mAh (9-cell) 11.1V lithium-ion battery
• High capacity extended life battery
• Manufactured to work for Dell Inspiron 6400, E1505
• It also gives the notebook much more exact fuel gauge capability to determine how much battery runtime is left before the next recharge is required
• This product has been tested and validated on Dell systems

Fuel Cell For Laptop Image

Fuel Cell For Laptop Picture

Fuel Cell For Laptop Image

Fuel Cell For Laptop Pic

31 of 31 people found the following review helpful.
My laptop is a laptop again!
By Coastside_OldRider
We have been using our Dell E1505 as a “desktop” (always plugged in) for over two years since the original Dell battery quit. I couldn’t justify the $150 dollar fee for a new battery. I have been waiting for both a non-dell battery to come down in price and get good reviews. The battery came promptly installed fine. I conditioned according to another posts recommendations “On your initial charge of 100% charging you let the battery drain to 40% and then recharge to 100% and then the second depletion to 20% and back to a full recharge cycle. This helps maintain the battery condition and in some aspects the “Brain” of the battery so to speak is set in motion and maintains battery health througout time. “. I don’t keep the laptop plugged in all the time when I am working at a table. So far so good. Keeps charge for 4-6 hours before needing to plug in. Time will tell how long this battery lasts – had it about a month.

10 of 11 people found the following review helpful.
Inspiron E1505
By Stan
Battery was delivered pre charged, which was nice. I bought this product in December of 2009 and the battery is still strong and holding it’s charge well.

6 of 6 people found the following review helpful.
Couldn’t ask for more
By Mother Mary
I am practically computer illiterate but ordered this battery when my original gave out after 4 years. I had no trouble either installing it or convincing my computer (Dell Inspiron E1505)to operate effectively. I followed one reviewer’s suggestion of draining it to 40%, recharging to 100%, then draining to 20%, etc. When fully charged now I have 6 hours of time, although I haven’t tested that to the max……about 4 hours is the most I have used it. I do leave it plugged in when not in use, but plan to use it on a 2-week trip soon, so will find out how it holds up when unplugged. I am well pleased with the prompt shipment by the vendor, as well as the battery itself.

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