Description
A battery holder is one or more compartments or chambers for holding a battery. this is either a plastic case with the shape of the housing molded as a compartment or compartments that accept a battery or batteries, or a separate plastic holder that is mounted with screws, eyelets, glue, double-sided tape, or other means. Battery holders may have a lid to retain and protect the batteries or maybe sealed to prevent damage to circuitry and components from battery leakage. Coiled spring wire or flat tabs that press against the battery terminals are the two most common methods of making the electrical connection inside a holder. External connections on battery holders are usually made by contacts with pins, surface mount feet, solder lugs, or wire leads.
 
Specifications:
Size:4X
Type: Battery Box
Color: Black
Material: PP, Steel Plated Nickel, Brass
Design: Serial Connection
Suitable for: 18650 Battery (Not Included)
Fit Battery Power: DC 3.7V
Standard: 1 Slot/2 Slots/3 Slots/4 Slots
Wire Length: 15cm/5.91" (Approx.)
 
PRECAUTIONARY NOTES:
Series Cells Note: When cells are connected in series, you need a special battery charger and controller that are specifically made to charge and balance series-connected cells.