Generic Voltmeter Key Switch [JST SM]
Key power switch rated for 99V. Compatible with 12V–99V systems including lead-acid and lithium batteries, with digital voltage display.
In brief: Power switch. Rated to 99V. From $6 across 2 sellers.
Specs verified May 29, 2026
Where to Find
Prices tracked across 3 sellersAliExpress - Outdoor New Life Store
$5.52 + $1.99 shipping
AliExpress - Stone's Store
$8.91 + $1.99 shipping
AliExpress - VASTFIRE Lighting Store
Out of stock* Shipping estimates are for the contiguous US and may vary by location.
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Specifications
Specifications
- Switch Type
- Key Switch
- Max Voltage
- 99V
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Green | Power Switch Signal |
| 2 | Red | Battery + |
| 3 | Black | Ground |


