20 Pack 18650 Battery Holder 2 Slot Battery Case with 6in/150mm Lead Wires for 3.7V Series DIY Battery Storage Box Black Plastic Kit

Name: 18650 2×3.7V battery boxDimensions: 7.5 cm L x 4 cm W x 2 cm H / 3" x 1.6" x 0.8".Weight: 14g/0.5ozMaterial: PPColor: BlackPackage quantity: 20pcs

• Dual-Battery Voltage Output:Each unit in this 20pcs battery holder set provides 7.4V through series-connected 18650 batteries, with insulated terminals preventing accidental contact
• Stable mounting structure:The PP plastic housing has two screw holes in the bottom for secure mounting in the electronics cabinet
• Pre-Wired Connectivity:Equipped with 22AWG leads (150mm length, tinned ends) for immediate integration with circuit boards and electronic devices
• Spring Retention System:Stainless steel contact springs maintain battery position while allowing tool-free replacement cycles
• Cross-Device Compatibility:Suitable for repairing LED controllers, wireless peripherals, laboratory instruments and industrial control systems