You can use a multimeter to measure some basic parameters of a lithium-ion battery pack, such as voltage and current. Here are the specific steps:
Set the multimeter to the appropriate measurement range and function and select the DC voltage measurement mode.
Identify the positive and negative terminals of the lithium battery pack, and connect the red probe of the multimeter to the positive terminal and the black probe to the negative terminal.
Take note of the voltage value displayed on the multimeter; this is the voltage of the lithium battery pack.
Connect the red and black probes of the multimeter in series with the current path of the battery pack. For batteries with higher current, you may need to use the appropriate current measurement range and ensure the correct fuse is in place.
Record the current value displayed on the multimeter; this is the current of the lithium battery pack.
Note: Ensure that you use the multimeter correctly and safely when performing these tests.
Can i take a lithium battery pack on a plane?
You can carry a lithium battery on an airplane, but the rated energy capacity of the battery cannot exceed 100Wh. Batteries with a rated energy capacity between 100Wh and 160Wh can be carried in your carry-on luggage with approval from the airline. Lithium batteries exceeding 160Wh are strictly prohibited from being brought on board. This is because lithium batteries can pose a fire risk at high altitudes and under conditions like low pressure and turbulence. Therefore, lithium batteries should not be checked in your checked baggage and should be placed in your carry-on luggage.
Method for determining the rated energy capacity of lithium batteries:
If the lithium battery does not have the rated energy capacity labeled in watt-hours (Wh), you can calculate it using the following methods:
If you know the battery’s nominal voltage (V) and nominal capacity (Ah), you can calculate the rated watt-hours as follows: Wh = V x Ah Nominal voltage and capacity are typically marked on the battery.
If the battery is labeled only in milliampere-hours (mAh), you can convert it to ampere-hours (Ah) by dividing the value by 1000. For example, if a lithium battery is labeled with a nominal voltage of 3.7V and a capacity of 760mAh, the rated watt-hour value is: 760mAh / 1000 = 0.76Ah 3.7V x 0.76Ah = 2.9Wh
Note that there may be additional regulations or policies from certain airlines or countries/regions to consider.
What is the packing group for lithium ion batteries？
Packaging Category II. Lithium-ion batteries must be placed inside inner packaging that is fully enclosed, and then placed within outer packaging. The complete packaging of lithium-ion batteries must comply with the performance requirements of Packaging Category II. The corresponding UN numbers for lithium batteries are UN3090, UN3091, UN3480, and UN3481, all falling under Hazard Class 9 (Miscellaneous Dangerous Goods). Additionally, labels must be affixed to the outer packaging. These labels should be placed on the larger side of the box, and all labels should be applied on the same side of the outer packaging without any overlap between them.
