DIY 5 * 21700 Battery Charger Case Power Bank Box Fast Charging Free Soldering,

Features:Holds 5 pieces of 21700 flat head batteries, a solderless and reusable DIY battery case. (Batteries not included)Features power display, intelligent automatic shutdown in non-working state, LED light activated by long press or double click; Reverse installation does not damage the motherboard.Easy to install, requiring no soldering or secondary processing. Simply install the batteries correctly and assemble for use. It is also repeatedly disassemblable and replaceable.Ideal for home/outdoor activities, easy to operate, and convenient for disassembly and installation.Only supports 21700 flat-headed batteries. Do not use pointed batteries or aging batteries. Improper use of batteries may result in inability to output, especially after prolonged use in other locations and disassembly. (Please note that for DIY products, a certain level of understanding is required. Otherwise, improper operation may lead to issues such as motherboard burnout.)Attention: Does not support 3.2V iron phosphate batteries. Do not use damaged batteries, do not install batteries that do not meet the requirements, and do not modify/weld the product. This product poses a high safety risk during production, please be cautious!Package Included:1 × Battery Box (Excluding Batteries)

• Holds 5 pieces of 21700 flat head batteries, a solderless and reusable DIY battery case. (Batteries not included)
• Features power display, intelligent automatic shutdown in non-working state, LED light activated by long press or double click; Reverse installation does not damage the motherboard.
• Easy to install, requiring no soldering or secondary processing. Simply install the batteries correctly and assemble for use. It is also repeatedly disassemblable and replaceable.
• Ideal for home/outdoor activities, easy to operate, and convenient for disassembly and installation.
• Only supports 21700 flat-headed batteries. Do not use pointed batteries or aging batteries. Improper use of batteries may result in inability to output, especially after prolonged use in other locations and disassembly. (Please note that for DIY products, a certain level of understanding is required. Otherwise, improper operation may lead to issues such as motherboard burnout.)
• Attention: Does not support 3.2V iron phosphate batteries. Do not use damaged batteries, do not install batteries that do not meet the requirements, and do not modify/weld the product. This product poses a high safety risk during production, please be cautious!