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2009-07-09
Why notebook batteries don't last long?
Ever since I switched from using a desktop PC to a notebook for all of my daily computer tasks I never bothered to look back. It is just so convenient to always be able to carry all your work with you wherever you go. In reality I am not much of a road warrior though so most of the time the notebook battery sits on my desk for weeks on end attached to its docking station.
Obviously when plugged into the mains during the day the notebook's battery never gets used. However every time you turn the notebook off at the end of the day it will drain the battery ever so slightly overnight and will start to top it off again when it gets turned back on. The question is whether that will wear down the battery quicker than if you simply drain the battery and then reconnect the notebook to the mains adapter to recharge it a few times a day?
Over the past eight months I have done exactly that experiment, by using two identical notebooks. One has been connected to the mains adapter all the time, being used for approximately eight hours every day, the other has had its battery drained and recharged, usually once a day, but has also been running for eight hours every day. The results are somewhat surprising. The notebook that has been connected to the mains has a flat battery now, basically you get about ten maybe twenty minutes worth of power out of it before the notebook goes into standby. The notebook that has had its dell 6y270 battery,dell c1295 battery,dell inspiron 500m battery cycled does not offer the plus four hours of battery life it used to give, but is still good for more than three hours of use.
So although hardly conclusive it does provide some insights into why some notebook batteries go flat after not being used for months. The topping off that occurs after every power cycle when connected to the mains could very well be putting more wear on the battery than actually draining it fully and recharging it once or twice a day. Maybe notebook manufacturers should make mention of this? Or allow for the battery to drop to 80% of its capacity prior to topping it off again? The latter might reduce the total running time for the notebook on batteries by a mere few minutes, but could prove worthwhile for the longevity of the dell inspiron 510m battery , dell inspiron 600m battery , dell latitude d500 battery pack. Or, this could just be a 'feature' which ties in with the three months warranty that is usually applicable to notebook batteries which boosts the sales of overpriced replacements. -
To extend the effective use of cell phone battery time, apart from the quality of the charger must be guaranteed, the right skills is also essential to charge, because the poor quality of the charger or charging the wrong methods will have an impact on the use of cell phone battery time and cycle life , the following are related to cell phone batteries skills.
1. Battery factory, manufacturers have been activated to deal with, and carried out a pre-charge, so the dell laptop battery has more than electricity. Such as the battery is indeed genuine, there should be 3-5 complete charge and discharge times.
2. If the new cell phone battery is to buy lithium-ion battery, then 3-5 times before the charge commonly referred to as an adjustment period, should allow for more than 14 hours to ensure full activation of lithium-ion activity. Lithium-ion inspiron e1505 without memory effect, but has a strong inert, should be given to fully activated, can guarantee the future use to achieve the best performance.
3. Some automated intelligent rapid charger when the lights change directions, they only express full of 90%, the charger will automatically slow to change with full charge the battery. The inspiron 2500 battery is full then it would be preferable to use, otherwise they will shorten the time.
4. Before charging, lithium batteries do not need special discharge, discharge improper latitude d620 battery will damage. Charging as much as possible in order to slow charge to reduce the fast charge mode, the time not more than 24 hours.
5. Please use the original or the reputation of a good brand of chargers, lithium batteries use lithium battery charger dedicated, and follow the instructions, otherwise they will damage the latitude d820 battery , and even dangerous.
6. Closed as much as possible while charging cell phone, otherwise they will hurt the mobile phone life very easily. Because the charging process, the cell phone circuit boards will be fever, at this time if there are external phone, you may have to return the current moment, the mobile phone's internal parts damage. In the cell phone off when charging, you can use the cell phone call transfer function, will be transferred to the mobile phone close to a fixed phone in order to prevent lost calls.
7. Battery life depends on the number of repeated charge-discharge, so should try to avoid when the rechargeable battery is more than electricity. Mobile shutdown time more than seven days, should be first cell phone fully discharged, adequate electricity and then use.
8. To charge the battery as far as possible, using a dedicated outlet, the charger should not be shared with television sets, home appliances outlet.
9. Do not expose the battery under high temperature or cold, such as dog day weather, should not be mobile on the car, stood in the scorching sun exposure; or get air-conditioned rooms, the place direct blowing of air-conditioned place. When charging, the battery has a little heat is normal, but it should not keep away from high temperature "suffering." In order to avoid this from happening, it is best carried out at room temperature for charging, and not to cover anything on the mobile phone.
10. Nickel-cadmium (NiCd) batteries must be guaranteed before the dell 8n544 battery ,inspiron 6400 battery completely dead, after recharging the battery must ensure adequate electricity.
11. If the mobile phone inspiron 6000 battery,inspiron e1505 battery but not been used to place too long, it is best to apply to the repair mobile phone battery to do the activation treatment, but also can use a DC barostat, adjust voltage of 5 ~ 6V, current 500 ~ 600mA reverse battery connection. Note that touch open up to repeat three times, after such treatment, the re-use original charger to carry out "period of adjustment" charge.
12. The longer the charging time is not good, for there is no protection circuit full latitude x300 battery charge should be stopped immediately, otherwise the battery overheating due to heat or impact performance.







