HP 8-cell battery F4089a F4812a, Replacement battery HP F4809a

Rechargeable 8-cell lithium ion replacement battery pack for all hp models f4809a f4812a f4098a for compaq presario 2100 2200 series; hp omnibook xe4000 series; pavilion xt series, ze4000, ze4100, ze4200 series, ze4300, ze4400, ze5000, ze5200, ze5300

Description: Rechargeable 8-cell Lithium Ion replacement battery rated 4400mAh 14.8V pack for all HP models F4809a, F4812a, F4098a for COMPAQ PRESARIO 2100 Series, 2200 Series; HP OMNIBOOK XE4000 SERIES and HP PAVILION XT SERIES, ZE4000, ZE4100 , ZE4200 Series, ZE4300, ZE4400, ZE5000, ZE5200, ZE5300. All HP batteries F4809a Memory free, Optimum performance, Extended run time and State-of-the-art components guaranteed. Specification: Chemistry: Li-ion Volt: 14.80V Capacity: 4400mAh Net Weight: 389.50g Dimension: 134.40 x 95.00 x 21.80 mm Color: Black HP F4809A Battery Tips: When your get the HP F4809A Laptop battery, please read the following sentences first, for they may give you some tips to prolong the lifetime of F4809A battery for your HP laptop! 1. Make sure you get the correct type of battery before it's fixed, otherwise the mismatched battery may destruct your laptops. 2. When you receive the new HP F4809A battery, please don't be hurry to use it immediately, erenow your HP F4809A battery may require for three to four charge/discharge cycles before achieving maximum capacity. 3. Don't make HP F4809A laptop battery short-circuit, dropped, pinched, and exposed to& immersed in the water. 4. Keep your battery for HP F4809A away from fire and other excessive heat sources to prevent it from explosion. 5. Don't press drop and burn the battery for HP F4809A . 6. When you don't use it, keep in a cool, dry and clean place. 7. If finding any leak or deformation, please stop use your HP F4809A laptop battery, you should get a new one for the sake of your laptops. 8. For it's self-discharging, don't be worried about this natural phenomenon. Just need to make the HP battery F4809A in a fully charged status and it's necessary to fully discharge and then fully charge the F4809A HP Battery every two to three weeks. 9. It is normal for your HP F4809A replacement battery to become warm when charging or normal use. But if it is getting too hot, there may be something wrong with the device, please remove it and ask help from our qualified personnel. 10. New HP F4809A battery is sometimes hard to be charged. Your electronic device may indicate a fully charged condition for about 10 to 15 minutes when a new battery pack is being charged for the first time. When this happens, remove the battery pack and let it cool down for a while. Repeat the charging procedure again. When a new HP F4809A battery is unable to charge, it is suggested to remove the battery from the device and reinsert it for several times to wake up dormant cells. Occasionally, BIOS updating is required to make the battery work normally on your device. Shop in usa: http://www.notebook-battery.org/notebook-batteries/hp-f4 ... Shop in uk: http://www.all-batteries.co.uk/notebook-batteries/hp-f48 ... and http://www.hp-laptop-batteries.co.uk/f4809a-battery.htm

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Karen(05.14.2012 15:1:00): For those that are confused about the phscyial size of the replacement battery, this is an extended size battery. There is the standard size that is flush with your laptop when inserted and there are the extended sizes that protrude out approximately one inch from the back of your laptop. You will find this same protrusion on any extended size battery you purchase directly from Dell; it will stick out the back a little and that is normal. The standard size is a six cell battery and will give you a shorter run time on a charge. This is a nine cell battery; this is how they get more run time out of the battery it's bigger ; Considering the same size battery from Dell for an Inspiron 1525 costs $179; I would say paying $39 is a bargain (price I paid at time of purchase). It would still be a bargain even if it lasts only half as long. You can save yourself some headaches though on having to replace your battery more often than necessary:- If you generally have your laptop plugged in and the battery is sitting there fully charged all the time, unplug it and let the battery run down a bit (about 40%) and then remove it. Your laptop will function just fine without the battery. When you need to use the battery, put it back in, let it charge up a bit, and use it.I can't give this product a five star rating as I haven't had it for an extended period of time. I received it, plugged it in, discharged it, and then charged it up to full it shows about 6.5 hours of run time with the backlight on the LCD at dim. Ran it down to 40% and put it away for storage. I'll come back and edit this review a few months down the road.[EDIT - Addition - Jan 31, 2011] Well, a few months down the road has passed by. First, a little background info so you can relate my usage to what I am saying. I am a full time tech college student, I drive a small fifteen minutes both ways to campus, and I attend class four days out of the week. I have the computer on pretty much the whole time as that is where I store my notes, take my notes, and do some of my homework. I use the the battery fairly frequently. With all that use my battery still reads 6.5 hours. Not sure if it is reading right or not, but it does hold a charge through all my classes down to about the 15-20% mark at worst (depending on usage). I do keep the battery on power saver settings while in school; display dimness turned all the way down, display turns off in 3 minutes, goes to sleep in fifteen minutes, and WiFi turned off unless I need to look something up. I do occasionally turn the display brightness up, but turn it back down after. One needs to realize that the more you are demanding out of your laptop it will shorten how long your battery will keep the laptop running; I am pretty much using it for Office 2007. I remove the battery on the weekends as I can run it off the power cord at home.I have been pretty satisfied with the battery, so much that when my wife's laptop (Inspiron 1525) had her battery kick the bucket I went and ordered one for her also (she has the same brand/model laptop as I do). I would buy this battery again and am changing my rating for it to a five star.[EDIT - Addition - October 10, 2011]It has been almost a full year since I bought this battery and it is still going strong. I cannot really add anymore to this than I already have. I am still using this on a regular basis in school and manage to run through my 3-4 hour classes with roughly 15% charge left. I have even made it through my Wednesdays this semester which run me from 10am-4pm with running on very conservative settings (display dimmed as often as possible).I am very pleased with this battery and my wife's battery also.