Hi, I have bought an used battery, I'd like to understand which is the real capacity of the battery.
The nominal capacity is 2300mAh, but I think the old owner give me a battery not very good.
N5 has these chips:
BQ24192 for charge the battery
MAX17048 fuel gauge.
Is there an app or a simple script to get informations from these chips and calculate the real capacity of the battery?
Thank you
Hehe
Related
If you like to deep-cycle (fully drain/recharge) their battery, you should stop doing that. Many of us got used to deep-cycling the Ni-Cd batteries, and didn't notice the smooth transition to Li-Ion batteries.
In fact, I can't think of a phone (or any other gadget) that would use Ni-Cd battery today. AFAIK, all modern phones/PDAs have Li-Ion batteries (including Raphael) which you SHOULD NOT fully discharge.
Here's a quote from wikipedia.org (http://en.wikipedia.org/wiki/Li-ion_battery):
Like many rechargeable batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a long time, they should be brought to a charge level of around 40%–60%
Lithium-ion batteries should not be frequently discharged fully and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.[27] This has nothing to do with the memory effect.
Li-ion batteries should never be depleted to below their minimum voltage, 2.4 V to 3.0 V per cell.
Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
Li-ion batteries should not be frozen [50] (most lithium-ion battery electrolytes freeze at approximately −40 °C; however, this is much colder than the lowest temperature reached by household freezers).
Li-ion batteries should be bought only when needed, because the aging process begins as soon as the battery is manufactured.[27]
When using a notebook computer running from fixed line power over extended periods, consider removing the battery[51] and storing it in a cool place so that it is not affected by the heat produced by the computer.
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Hope this helps someone.
Is there any way to check the mAh of a battery you just recieved. I ordered a 3500mah one off ebay and just want to make sure that it is the same mah as stated. Is there a program or some way I can check this?
Thanks
Typically you'll need a device, or some system to discharge the battery at a constant current, and then measure the time it takes to meet its final voltage, and you need to watch it to make sure you don't kill the battery. Plus the life also depends on the discharge rate so you may get more than 3.5Ah out of it if you discharge it longer with a low current then visa versa.
Also typically batteries you buy on ebay don't normally meet the rated life.
garbz said:
Typically you'll need a device, or some system to discharge the battery at a constant current, and then measure the time it takes to meet its final voltage, and you need to watch it to make sure you don't kill the battery. Plus the life also depends on the discharge rate so you may get more than 3.5Ah out of it if you discharge it longer with a low current then visa versa.
Also typically batteries you buy on ebay don't normally meet the rated life.
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I just bought a 3500mah battery from ebay. Its only gone through 1 full discharge but assuming my Samsung battery is 1500mAh I'd estimate the ebay one to be about 2200-2300mAh.. hopefully it will increase after a few cylces and calibration
I bought that battery, and it's definitely not that good, Idk if I got a bad one, but my phone only last about hmm the same as the stock battery.. I wish I could check the mah
hello,
i replaced the original battery 1500 mah with 1900mah battery by ebay. but the capacitiy of the new one shows 1500 mah wich will not be true.
so what to do in order to show the 1900 mah.
thx
Your phone cant show battery capacity, maybe you are using some software that shows standard capacity (because it was written to show that).
oh realy? its not possible to display the real capacitiy after replacing in different batteries in differen mAh?
hence i cannot determine the capacitiy of the battery, i must blind trust what written on the battery?
thx
U have to mesure it more professionally or your software is good and your battery is really a 1500mah. But most of all - check it in real life usage and compare.
If you want to know the method about How to Check Battery Health? then you simple click given below link and see the complete method. In this way, you can also see the sumsang mobile battery health here.
Click here: How to Check Battery Health
If only it really did...
That doesn't really tell much about its health other than relative power level (of current "full" capacity rather than what its capacity was when new)*.
The only valuable information is the actual SOT and the screen off time power consumption.
The current ones vs what these values were when the battery was new, roughly.
The charging curve may also indicate erratic fast charging which can be a sign of a failed Li.
A swollen battery is a failure. A bulging rear cover or display is the only warning you'll get.
Even then the battery condition will still be reported as "Good"
To avoid a failure and possibly destroying the display, even the whole phone, replace Li's when they fall below 80% of their original capacity.
At 50% it's clearly noticable as run time is cut in half of what it was when new.
Don't wait for it to fail. A degraded Li is much more likely to fail than one in good condition.
*% is based on cell voltage not current capacity.
As a cell degrades it still charges to near the same voltage as new but its current capacity slowly declines. So the battery % indicator provides only one of two needed parameters to gauge battery health. VxA=Watts
The phone's wattage use is constant as is the required voltage for V+. The phone's power controller uses more amps as the battery voltage falls to maintain a constant V+ and mAh.
Accubattery gives useful power usage logs to help gauge excessive power usage and monitor battery decline.
This is what a healthy battery's usage pattern looks like. This battery is 4 months old.
Hi, I'm curious to know if I can change my Android Battery level in the range of 0% to 1000% . I wish Android is full customizable. As you know, our mobile can measure our battery voltage so accurately. Like 3.7543 V. or 3754 mV. So , there should be a way to discover 1000% in the status bar by changing it's range . Thanks!
State of Charge is a bit harder to know than exact battery voltage.
I'd be happy if SOC was accurate within 1%.
Theoretically if you know the instantaneous battery voltage, in/outgoing current, the actual current capacity of the battery and the battery temperature you can determine the SOC.
But it ends up not being that easy.
That's why some (many?) devices try to integrate all the current going in and out of the battery.
Still, there are heating losses charging and discharging.
Besides what you want is another significant digit, 0.0% to 100.0%
The only way you'll get 1000% is if you have 10 batteries and you calculate capacity like top calculates CPU usage on multi-core processors.
Code:
800%cpu 5%user 0%nice 4%sys 790%idle 0%iow 1%irq 0%sirq 0%host
Sir. Not talking about more batteries, sir. My Bat is 5000 mAh. So for 1000% , 1% will be drained consuming 5 mAh capacity. Currently, my phone measures 1% for 50 mAh. Actually, the problem is my battery drains very lately and it's too good! So, the battery percent drops very very lately. Which makes me bored! So I want to make it measure very accurataly, 5000 mAh capacity will stay same, just divide it's capacity in more scale. So I can see how it's draining. Maybe I will see 1% drop per 30 second in case 1000%. Anyway, Please help to convert it to 1000% or 500% or 200% at least. Please!!