Insert the battery into the remote control with the positive pole (+) marking facing down. If the battery is inserted incorrectly, electrolyte may leak. When replacing the battery, be careful not to bend the electrical contacts and keep the electrical contacts from being contaminated with oil. Make sure that no dirt gets into the housing of the remote control. This may damage the remote control. If the replacement is performed incorrectly, there is a risk of the battery exploding. When replacing, use only CR1620 batteries or equivalent batteries. When disposing of used batteries, follow these rules:
- insulate the positive and negative terminals of the battery with cellophane or electrical tape;
- do not disassemble the batteries;
- do not throw batteries into fire or water;
- do not deform or break the batteries.
(The article is copied from the resource: mazbook.ru)