Re: Battery life on 800w
 

just thought i would note, i know that this update helps with battery life on these but also these batteries are coming back to us left and right failing... so they must have a bad batch of batteries as well. just thought i would give ya the heads up.

Re: Battery life on 800w
 

Because you are playing with all the functions less then your first few days and you may have turned some options off. There is no "conditioning" of this type battery.

Re: Battery life on 800w
 

After you recharge your battery 5 or 6 times, the battery will hold it's charge longer. That is a fact. Also, I just got the new Seidio Extended Battery with it's hump cover and it actually now lasts all day. It's really made a big difference.
http://ghs64.net/images/DSC00307.JPG

Re: Battery life on 800w
 

Yeah it's called cycling the battery...some people don't believe that works..

Re: Battery life on 800w
 

Turning off the screen saver saves TONS of battery life. Combined with the other battery saving settings my battery lasts easily all day (5 am-10 pm). I'm considering NOT buy the extended battery now. If the extended battery didn't add the extra width I would get it just 'cause.

Re: Battery life on 800w
 

Never used the screen saver, just lots of data entry, emails, texting and phone calls. The extended battery really makes life easier. The hump makes holding it more secure.

Re: Battery life on 800w
 

"Lithium-ion is a low maintenance battery. No periodic discharge is needed and charging can be done at random. A random charge means that the battery does not need to be fully depleted before recharge. In fact, it is better to recharge before the battery gets too low. Full discharges put an unnecessary strain on the battery. A recharge on a partially charged battery does not cause memory because there is none.

. . . lithium-ion cannot absorb overcharge and no trickle charge is applied on full charge. This allows lithium-ion to be kept in the chargers until used. Some chargers apply a topping charge every week or so to replenish the capacity lost through self-discharge while the battery sits idle in the charger. Repeated insertion into the charger or cradle does not damage the battery though overcharge. If the battery is full, no charge is applied. The battery voltage determines the need to charge.

On the negative side, lithium ion gradually loses charge acceptance as part of aging, even if not used. lithium ion batteries should not be stored for long periods but be rotated like perishable food. The buyer should be aware of the manufacturing date when purchasing a replacement battery. Aging affects battery chemistries at different degrees.

http://www.batteryuniversity.com/parttwo-37.htm

Re: Battery life on 800w
 

More tips from Battery University

"Simple Guidelines

• Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
• Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
• Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
• Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
• Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.
• If you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge."

• http://www.batteryuniversity.com/parttwo-34.htm

Re: Battery life on 800w
 

Thanks. As you can see from batteryuniversity there isn't such a thing as conditioning this type of battery. It will never work better than the first few days and only gets worse over age and cycles.

Re: Battery life on 800w
 

I tend to believe my own experience as opposed to an article posted on the internet. Nightly charging has greatly improved my battery life after a few weeks and then it pretty much stablized. My Centro and 800w both showed this same behavior.