What is the meaning of mAh for batteries?
When someone first caught wind of power banks, one of the very first questions is about what mAh implies. What mAh really does and how does the difference between the measure of mAh affects each power bank? As power banks are essentially made from rechargeable batteries, they are generally used as portable chargers to provide instant power for products ranging from mobile phones to jump starting a car. The battery capacity is measured in mAh(mili Ampere for every hour). Hence obviously, the larger the mAh, the greater charge a battery contains.
By Pisen — 02 Jan 2015, 02:58 PM — Updated almost 10 years ago
Power Loss
Power loss occur in every electronic and electrical devices, normally in the form of heat and noise due to inevitable internal resistance. Hence, a 10,000mAh power bank may lose up to 10-15% of its’ charge, actual capacity that can be discharged to other devices is estimated to be only 8500mAh(conversion rate of 85%).
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Conversion Rate
This is only an estimated figure for high quality branded batteries, OEM and brandless batteries may have much, much lower conversion rate of around 60-70%. Pisen power banks, on the other hand have strong conversion rate of up to 90%, which is even higher than many branded batteries.
In short, the mAh rating of a battery is a measurement to compare the energy storing capacity of one battery to another.
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