How to insert batteries type 18650 properly?
On 18650 type batteries, there are usually no + and - signs, but despite this, the polarity of the battery is easy to determine. All 18650 batteries have a ring around the positive pole:
Batteries must be inserted into battery boxes according to their polarity:
Please be careful when inserting batteries! If not done correctly, it may cause a fire!
Here is a video demonstrating it:
Here is a video demonstrating it:
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