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Batteries are the power source for portable and standalone electronics projects, supplying the voltage and current required to run microcontrollers, sensors, motors, and wireless modules without a tethered supply. Choosing the right battery involves balancing capacity, voltage, discharge rate, and physical size.

This collection covers a broad range of battery chemistries and form factors: LiPo packs for RC and drones, 18650 Li-ion cells for high-capacity portable builds, NiMH AA and AAA rechargeables for general use, CR2032 and CR2016 coin cells for low-power wearables and sensors, and standard alkaline AA and AAA cells.

Batteries in this range are used to power Arduino and ESP32 projects, micro:bit and Raspberry Pi builds, RC vehicles and drones, portable Bluetooth speakers, wearable electronics, IoT sensor nodes, and STEM education kits.

3.7V Li-Po Lithium Polymer Battery 100mAh 400mAh 600mAh 700mAh 900mAh 1200mAh 1600mAh 2800mAh 4400mAh

3.7V Li-Po Lithium Polymer Battery 100mAh 400mAh 600mAh 700mAh 900mAh 1200mAh 1600mAh 2800mAh 4400mAh

from $6.00
from $6.00
9V Battery

9V Battery

$1.60
$1.60
18650 Lithium Battery 2500mAh 3400mAh 3.7V

18650 Lithium Battery 2500mAh 3400mAh 3.7V

from $8.50
from $8.50
4x AA Battery Holder with Switch

4x AA Battery Holder with Switch

$2.00
$2.00
AA Battery 4pcs

AA Battery 4pcs

$2.00
$2.00
9V Snap Battery Holder

9V Snap Battery Holder

$0.40
$0.40
1x 18650 Battery Holder

1x 18650 Battery Holder

$1.20
$1.20
4x AA Battery Holder

4x AA Battery Holder

$1.20
$1.20
9V Battery Holder with Switch

9V Battery Holder with Switch

$2.40
$2.40
2x AA Battery Holder with Switch

2x AA Battery Holder with Switch

$1.40
$1.40
2x 18650 Battery Holder with Switch

2x 18650 Battery Holder with Switch

$3.60
$3.60
9V Battery Holder

9V Battery Holder

$1.20
$1.20
2x AA Battery Holder

2x AA Battery Holder

$0.60
$0.60
2x 18650 Battery Holder

2x 18650 Battery Holder

$2.00
$2.00
9V Battery Holder with Switch and Plug

9V Battery Holder with Switch and Plug

$2.80
$2.80
9V Snap with 2.1mm Plug Battery Holder

9V Snap with 2.1mm Plug Battery Holder

$0.80
$0.80
18650 Battery Charger 2 4 Channel

18650 Battery Charger 2 4 Channel

from $12.40
from $12.40
8x AA Battery Holder with Switch

8x AA Battery Holder with Switch

$4.00
$4.00
8x AA Battery Holder

8x AA Battery Holder

$2.00
$2.00
2x AAA Battery Holder with Switch

2x AAA Battery Holder with Switch

$1.40
$1.40
2x AAA micro:bit Battery Holder

2x AAA microbit Battery Holder with Switch

$1.50
$1.50
12V 4800mAh Battery Li-Po Lithium Polymer

12V Battery Li-Po Lithium Polymer with Charger 4800mAh 6800mAh 9800mAh

from $46.00
from $46.00
CR2023 CR2025 CR2032 Battery Holder

CR2023 CR2025 CR2032 Battery Holder

$0.20
$0.20
AAA Battery 2pcs

AAA Battery 2pcs

$1.00
$1.00