5/17/2023 0 Comments Andriod innecto battery![]() It will be the quality and rating of the cable you are using.ĭifferent qualities of cable will handle different amounts of current and this is what will allow your battery to charge at different rates (assuming a suitable charger is used). The voltage and current rating of your battery won't be the problem. To estimate charging time required considering all the factors enumerated, use the Battery Charge Time Calculator.I would suggest latter option, though more expensive but lasts across many phones you may own over a period of time (A robust Blackberry cable purchased ten years ago is still doing good) Alternatively Google for 24/28 awg micro USB cable and purchase that. You can always test the current using your app before buying. While buying USB cables go in for shorter and thicker USB cables (they offer less resistance to current) compared to longer and thinner cables as normally available (offer more resistance to current and hence slower charging). USB cable purchased seems to be a suspect.It is not clear from your question whether the readings are obtained while charging from a wall charger (definitely very bad if that is the case ) or from USB charging from laptop (bad).Need to know what are the normal ratings Explanation above should have made it clear that there is no normal or standard rating being dependent on C-rate, battery capacity, charging efficiency, charging algorithm, source of charging and in which stage of charging it was measured.So much for theory, coming to your question: As a typical example of this graph plotted on charging my phone see this So this had to be borne in mind while measuring. If you plot current drawn using your app while charging a battery from 10% or lower to 100%, you would observe this. Li-Ion batteries go through three stages of charging of battery charging Figure 1 of Charging Li-Ion batteries- Constant Current, Saturation Charge (current decreases), Ready (almost zero current). Current drawn for charging is NOT uniform.USB charging is much slower as USB 3.0 give only 900 mA and USB 2.0 gives 500mA (refer linked Wikipedia).This is the current your app should show using standard 2A,5V wall charger (rare to find lesser rated chargers these days).Your device battery is 2500mAh as per information on net, so the charging rate in mA =0.7*2500= 1750 or less = 900 mA ( =90% of 0.5C* 2500) if your charger is charging at 0.5C ( Edit OP has confirmed in comments that his charger is 1A rated, so the charging rate appears to be 0.5 C).Next, one has to account for charging efficiency which is typically 90% for Li-Ion chargers, so effective charging rate would be about 0.7C (=90% of 0.8 C).Li-Ion or Li-PO (both have same charge/discharge characteristics) -typically charged between 0.5 C to 0.8 C, more often closer to 0.8 C (as a thumb rule, depends on a lot of other factors like charging algorithm,"quick charging" ,OEM specific charging protection methods etc).At 1C, the same battery discharges at 1,000mA. ![]() In an ideal world the battery would be fully charged in 60 minutes. At 1C, a battery rated 1,000mAh charges at a current of 1,000mAh. Quoting from the linked articleĬ-rate is a measure that governs at what current a battery is charged and discharged. Firstly one needs to understand C-rate or charge rate.
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