Technical article

How to Choose AA, AAA and 18650 Battery Holders

Check battery type, cell count, lead style, cover and switch before selecting a battery holder.

How to Choose AA, AAA and 18650 Battery Holders

Detail

Overview

A good battery holder selection starts with the battery type and cell count, then moves to product space, cover, switch, wire length and plug.

Information

Details

Battery type and cells

AA, AAA and 18650 holders use different dimensions. Cell count also affects voltage and holder length.

Structure details

Covered holders protect cells; switch types are useful when the product has no separate switch; wired types require wire length, gauge and outlet direction.

Connection method

If the holder connects to a PCB or DC interface, confirm terminal, DC plug, wire color and polarity.

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