Product Overview
PartsMine Programmable DC Voltage Gauge and Battery Capacity Indicator
Condition
New stock. Sold each. Evaluation: Unused unit with factory pre-stripped red and black wire leads. Front panel marked TEST and Smart Battery Monitor with rear solder points marked VCC and GND.
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Product Overview
PartsMine A-8484 (model JX-4615N-A3) is a compact, self-powered digital battery capacity indicator and DC voltmeter designed for rapid state-of-charge assessment. Featuring a 3-digit white numeric LED display alongside a 5-segment green battery fuel gauge, the module connects directly across positive and negative power rails between 7V and 55V DC. A front-panel TEST button toggles the display between active readouts and a low-power standby mode, as well as providing access to configuration menus for multiple battery chemistries including Lithium-Ion, Lithium Iron Phosphate (LiFePO4), and Lead-Acid.
Key Features
- 7.0V to 55.0V DC operating voltage range, self-powered from monitored source
- Dual readout with 3-digit white LED numeric voltage display and 5-segment green LED charge gauge
- Multi-chemistry compatibility: 3S to 12S Lithium-Ion/LiPo, 3S to 14S LiFePO4, and 12V to 48V Lead-Acid (SLA/AGM/Gel)
- Front-panel momentary push button controls wake, sleep, and parameter setup
- Visual low-voltage warning flashes lowest gauge segment when capacity reaches 10% or below
- Compact 46 mm x 15 mm footprint suitable for flush panel, surface, or custom enclosure mounting
- Two pre-stripped wire leads for power and sensing: red (VCC) and black (GND)
Applications
- Building custom 12V to 48V portable battery packs, solar power boxes, and field charging stations
- Adding an instant state-of-charge readout to electric scooters, e-bikes, and robotics platforms
- Upgrading equipment control panels and mobile field kits that require quick visual voltage checks without draining standby power
Frequently Asked Questions
Can this module be programmed for custom battery voltages?
Yes. The front-panel TEST button allows selection between preset Lithium-Ion, LiFePO4, and Lead-Acid cell counts, as well as programming custom high and low voltage thresholds.
Does the display remain on continuously?
Pressing the front TEST button toggles the display on or enters sleep mode to minimize current draw when monitoring is not required.
How is the module powered and connected?
It operates directly from the monitored DC voltage source via the two flying wire leads: red to positive (VCC) and black to negative (GND). No external secondary power supply is required within its 7V to 55V DC operating range.
Simple, sharp readouts turn battery guesswork into an exact number right when you need it. Wire it into your next portable build and always know where your pack stands.
