Battery Holder — AA AAA 18650 CR2032 9V PCB & Wire Lead Battery Cases

Battery Holders — AA, AAA, 18650, CR2032, 9V & Multi-Cell PCB Mount & Wire Lead Cases

Battery holders provide a reliable, removable mounting solution for standard batteries in electronic devices, prototypes, and production equipment. Unlike soldered battery connections, battery holders allow easy battery replacement without soldering, making them essential for consumer electronics, IoT devices, remote controls, Arduino projects, and any battery-powered application requiring periodic battery changes. This collection covers the complete battery holder range — from miniature CR2032 coin cell holders to multi-cell 18650 lithium-ion packs — in PCB-mount and wire-lead configurations, with and without on/off switches.

Battery Type Reference Guide

AA (LR6, 14500) — 1.5V alkaline / 1.2V NiMH / 3.7V Li-ion (14500). The most common consumer battery. Holders available in 1–8 cell configurations, series and parallel wiring, PCB mount and wire leads.
AAA (LR03, 10440) — 1.5V alkaline / 1.2V NiMH. Compact version of AA. Holders available in 1–6 cell configurations, PCB mount and wire leads.
C (LR14) — 1.5V alkaline. Medium-size battery for higher-capacity applications. Holders in 1–4 cell configurations.
D (LR20) — 1.5V alkaline. Large battery for high-drain applications (flashlights, radios). Holders in 1–4 cell configurations.
18650 — 3.7V lithium-ion rechargeable (18mm × 65mm). The standard cell for laptop batteries, power banks, and EV battery packs. Holders in 1–4 cell configurations, with and without protection circuit.
CR2032 — 3V lithium coin cell (20mm × 3.2mm). The most common coin cell for RTC backup, key fobs, and low-power IoT devices. PCB mount holders (SMT and DIP, horizontal and vertical) and wire-lead holders.
CR2016 / CR2025 — 3V lithium coin cells (20mm diameter, 1.6mm / 2.5mm thickness). Thinner alternatives to CR2032. PCB mount holders.
CR1220 / CR1225 / CR1616 / CR1632 — Smaller 3V lithium coin cells for ultra-compact devices. PCB mount holders.
9V (6F22) — 9V alkaline/NiMH block battery. Holders with snap connector leads for Arduino, effects pedals, and portable electronics.

Key Technical Specifications

Contact material: Nickel-plated steel spring contacts
Body material: ABS plastic (UL94HB) or PC (UL94V-0 for PCB mount)
Wire leads: 150mm (6") or 200mm (8") AWG26 wire with bare or tinned ends
PCB mount: Through-hole DIP or SMT pads
Switch (optional): SPST slide switch integrated into holder body
Certifications: CE, RoHS

Complete Product Range in This Collection

This collection includes: AA battery holders (1–8 cell, series/parallel, PCB/wire lead, with/without switch), AAA battery holders (1–6 cell, PCB/wire lead), C and D cell holders (1–4 cell, wire lead), 18650 holders (1–4 cell, PCB/wire lead, with/without protection), CR2032 coin cell holders (SMT horizontal, SMT vertical, DIP, wire lead), CR2016/CR2025 holders (SMT, DIP), smaller coin cell holders (CR1220, CR1225, CR1616, CR1632 — SMT and DIP), and 9V snap connectors (wire lead, I-type and T-type).

Ideal Applications

AA/AAA holders: Arduino and Raspberry Pi portable power; remote controls; IoT sensor nodes; educational electronics kits; LED flashlights and lanterns
18650 holders: DIY power banks; portable LED lighting; e-bike and scooter battery packs; vaping devices; high-capacity IoT gateways
CR2032 holders: RTC (real-time clock) backup power on PCBs; key fobs and remote controls; medical devices; BIOS/CMOS battery replacement; low-power BLE beacon nodes
9V holders: Arduino Uno and Nano portable power; guitar effects pedals; smoke detectors; portable test equipment

Battery Holder Buying Guide

Step 1 — Choose battery type: Match the holder to your battery chemistry and size. AA is the most versatile for prototyping. CR2032 is standard for RTC backup. 18650 is best for rechargeable high-capacity applications.

Step 2 — Series vs parallel wiring: Series wiring increases voltage (e.g., 4×AA = 6V). Parallel wiring increases capacity (e.g., 2×18650 = 7.4Ah at 3.7V). Verify your circuit's voltage and current requirements before selecting cell count and wiring configuration.

Step 3 — PCB mount vs wire lead: PCB mount holders (DIP or SMT) solder directly to the PCB for compact, integrated designs. Wire lead holders connect via flexible wires, allowing the battery to be positioned away from the PCB — useful for enclosure designs where the battery must be accessible for replacement.

Step 4 — With or without switch: Holders with integrated SPST slide switches allow power on/off without disconnecting the battery — convenient for portable devices. Holders without switches are simpler and lower cost for designs with dedicated power switching circuits.

Why Choose Yoeruyo for Battery Holders?

Yoeruyo stocks the complete battery holder range — from miniature SMT coin cell holders to multi-cell 18650 packs — all CE and RoHS certified with nickel-plated steel spring contacts for reliable, low-resistance battery connections. Available from 5pcs for prototyping to 500pcs+ for production.

Frequently Asked Questions

Q: Can I use a CR2032 holder for CR2025 or CR2016 batteries?
A: CR2032, CR2025, and CR2016 all have the same 20mm diameter but different thicknesses (3.2mm, 2.5mm, 1.6mm). A CR2032 holder will physically accept CR2025 and CR2016 batteries, but the thinner batteries may have looser contact. For best results, use a holder matched to your specific battery thickness.

Q: What is the difference between series and parallel battery holder wiring?
A: Series wiring connects positive to negative across cells, adding voltages (e.g., 2×1.5V AA = 3V). Parallel wiring connects all positives together and all negatives together, keeping voltage the same but multiplying capacity (e.g., 2×2000mAh AA = 4000mAh at 1.5V).

Q: Are 18650 holders compatible with protected and unprotected cells?
A: Most 18650 holders accommodate both protected (with PCB, slightly longer ~69mm) and unprotected (standard 65mm) cells. Verify the holder's maximum cell length before ordering if using protected cells.

Q: What wire gauge do wire-lead battery holders use?
A: Standard wire-lead holders use 26AWG (0.14mm²) wire, rated for approximately 1A continuous. For higher-current applications (e.g., 18650 packs), use holders with 22AWG or heavier wire leads.