dicodes SBS18350Qi Podręcznik - Strona 7

Przeglądaj online lub pobierz pdf Podręcznik dla Elektroniczne papierosy dicodes SBS18350Qi. dicodes SBS18350Qi 18 stron.

05 Main Menu (Page 3)

Battery Status Part1

The Check Battery item shows the battery voltage with little current drained (Ub0) and

the battery voltage under load during the last puff (UbL). The difference is the voltage

drop of the battery (dU). A high drop (e.g. dU>0.4V@20W and dU>0.7V@60W) indicates

a poor battery and/or contact problems.

Please note that every battery has an inner resistance and that therefore the voltage at it's contacts always

drops when current is drained. The more current is drained, the higher the drop will be. Always remember

this behaviour.

Commonly used batteries of 18350 size have inner resistances of about 50m up to 100m .

Batteries of size 18500 have slightly lower inner resistance and those of size 18650 have lower values of

18..35

. Generally speaking, the batteries with high capacity have higher inner resistance and vice versa.

Battery Status Part2

The SBS18350-Qi has an additional feature supporting the user to evaluate the quality of

the battery and the system contacts on the battery side.

This feature is gaining importance becasue the device can handle power output of up

to 60W.

When at the display menu item of Ub0 and UbL described above, the mod will display the system's source

resistance Rb and a more accurate measurement of the voltdrop Ub, as soon as the values of Ub0 and UbL

are highlighted and the button is pressed. Every time the button is pressed then, the display will

toggle between the values of Ub0/UbL and Rb/dU.

Note that these values might change a bit when toggling back and forth, because the battery voltage

without load (Ub0) can change, mainly due to the temperature change (cooling) after vaping.

The systems source resistance is the sum of the batteries inner resistance as the main contribution and all

contact and wiring resistances of the device. As already stated, typical battery resistances vary from 18m

to 100m depending on the type and age. The typical contact and wiring resistance of the SBS18350-Qi

sums up to about 6m .

At high power, the current drained from a battery will lead to a

resistance. The by far biggest part of the

Please keep this always in mind.

The diagram below shows the voltage drop depending on the source resistance based on a battery charged

to 3.8V. When the battery is not fully charged the drop will increase even more, because of the

increasing current needed to provide the same ouput power.

voltage drop is created INSIDE the battery and NOT in the device.

significant

voltage drop at the systems source

Battery

resistance

in Ohm

Power in Watts