A versatile, IPX7-rated power monitor, the USB Battery Level Indicator delivers real-time diagnostics and efficient charging for golf carts, inverters, solar systems, RVs, and marine use. It optimizes and protects lead-acid, ternary lithium, and LiFePO4 batteries.
Custom high/low voltage setting
- Set any low voltage alarm threshold and fully charged (saturation) voltage between DC 8V and 30V, regardless of preset battery profiles.
- Perfect for refurbished battery assemblies, non-standard chemistries, or any application where standard 3S/4S lithium or lead-acid modes don’t apply.
- The low voltage value triggers the battery gauge’s under-voltage warning; the high voltage value defines 100% capacity for accurate state-of-charge calculation.
- Once configured, both values are saved permanently. No need to reset after restarting the battery level meter.
- When custom mode is enabled, the internal presets for lead-acid, ternary lithium, and LiFePO4 are ignored – only your own voltages are used.
Low voltage alarm setting
- Set a custom low voltage threshold anywhere within the DC 8-30V operating range.
- When battery voltage drops below the set value, the battery charge indicator triggers a clear audible or visual alarm to warn of deep discharge.
- Use the front and rear buttons to easily adjust the alarm threshold on the LCD screen.
- The low voltage alarm setting is saved to memory after power-off, so you don’t have to reconfigure each time.
- Prevents over-discharge for lead-acid, lithium, and LiFePO4 batteries, protecting your connected equipment and prolonging battery service life.
Application
This USB battery level indicator is widely used in high and low voltage distribution panels, photovoltaic inverters, and assembly line testing for real-time voltage monitoring. It is also ideal for display cases and stands, electronic repair workbenches, and DIY electronics projects where compact size and fast USB/Type-C charging are essential.
On Repair Bench
On Acrylic Stand
On Photovoltaic Inverter
On Workbench
Â
| Model | SISCO-BI-JX-6133USB |
| Voltage Measurement Range | DC 8V – 30V (supports 12V / 24V systems) |
| Working Current | <15mA (no charging load) |
| Display Type | LCD with green backlight |
| Detection Accuracy | ±1% |
| Refresh Rate | 500ms per reading |
| USB Output | QC2.0 / QC3.0, max 18W (5V/3.4A, 9V/2A, 12V/1.5A) |
| Type-C Output | QC2.0 / QC3.0, max 18W (5V/3.1A, 7V/2.4A, 9V/2A, 12V/1.5A) |
| Waterproof Rating | IPX7 |
| Mounting Hole Size | 58.5mm × 36.5mm |
| Product Dimensions | 61mm × 40mm × 22mm |
| Optional Function | Temperature display |
| Power Off Memory | Yes (saves battery mode, alarm threshold, custom voltages, backlight time) |
Â
Dimension (unit: mm)
Q1: What battery types can this battery level indicator work with?
A1: It supports lead-acid (12V/24V), ternary lithium (3S–7S), and LiFePO4 (3S–8S). A custom mode is also available for any battery within DC 8V – 30V.
Q2: Can I charge devices while monitoring the battery?
A2: Yes. The USB and Type-C ports deliver 18W QC2.0/3.0 fast charging – you can charge phones, tablets, or other devices while the meter displays real-time capacity and voltage.
Q3: Does the meter save my settings after powering off?
A3: Yes. All settings (battery type, low-voltage alarm, custom voltages, backlight time) are stored in power-off memory – no need to reconfigure after restart.
Tip: How to extend battery life with a low-voltage alarm?
Set the low voltage alarm threshold to 20-30% above the battery’s minimum discharge voltage (e.g., 11.5V for a 12V lead-acid battery or 3.0V/cell for lithium). When the battery level indicator triggers the alarm, stop discharging immediately. This simple practice can double or triple the cycle life of your lead-acid, lithium, or LiFePO4 batteries.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
Shop on sisco.com for all of your industrial test and measurement equipment & accessories including portable detectors, meters, testers, scales, etc.
