Ideal for cars, motorcycles, and golf carts, this reliable tool is a practical battery gauge. It also works perfectly for boats, RVs, inverters, and solar systems. The built‑in low-voltage alarm and temperature monitoring help prevent unexpected power loss. You get accurate capacity readings for lead acid, lithium, or LiFePO₄ batteries. A solid choice for daily use across many vehicle types, from AGVs to forklifts.
Real-time digital monitoring & low voltage alert
- Shows battery level percentage and voltage (0.01V resolution) on a large LCD.
- Built-in SOC algorithm ensures accurate capacity gauge for lithium or lead acid.
- Low-voltage alarm with blinking red light (audible optional) prevents unexpected shutdown.
- Temperature monitoring from -20°C to 80°C for safety.
Wide compatibility & smart memory backup
- Engineered for 12V–48V setups, with robust tolerance for spikes up to 100V.
- Supports LiFePO4, deep cycle, and solar battery types with auto calibration.
- Power-off memory saves all settings – no data loss after disconnection.
- Optional Bluetooth / RS485 / UART for real-time data on your device.
Robust design & flexible connectivity
- Waterproof construction for outdoor and marine environments.
- Wide-angle LCD for easy reading from any side.
- The built-in storage chip retains settings after a power loss.
- Optional Bluetooth, RS485, UART, or I2C for real-time data transmission.
Applications
Battery gauges work perfectly for golf carts, inverters, motorcycles, boats, and RVs. It is also ideal for solar systems, AGVs, forklifts, and EVs. Whether you need reliable capacity monitoring for daily driving, off-grid living, or industrial equipment, this indicator delivers.
Solar Systems
Forklifts
Motorcycles
Inverters
| Model | SISCO-BI-6839 |
| Working Voltage | 9V – 100V DC (8-100V compatible) |
| Working Current | ≤ 20mA |
| Voltage Resolution | 0.01V |
| Temperature Detection Range | -20°C ~ 80°C |
| Display Type | LCD, large screen with a wide viewing angle |
| Battery Types Supported | Lead-acid, Lithium (3.7V / 12V / 24V / 36V / 48V), LiFePO4, Deep cycle |
| Alarm Type | Built-in flashing light (audible optional) |
| Memory | Built-in storage chip (power-off data retention) |
| Communication (Optional) | Bluetooth, RS485, UART, TTL, I2C, One-wire |
| Waterproof | Yes (waterproof process) |
| Dimensions | 68.78 × 38.8 mm (approx.) |
Dimension (unit: mm)
Q1: Can this battery gauge work for my golf cart, inverter, or RV with lithium batteries?
A1: Yes. It supports 12V, 24V, 36V, and 48V systems up to 100V, and works perfectly with lithium, LiFePO4, lead acid, and deep cycle batteries. Ideal for golf carts, inverters, RVs, boats, and solar systems.
Q2: Does it show a low-voltage alarm before the battery dies?
A2: Yes. The built-in low-voltage alarm triggers a flashing red light (audible optional) when voltage drops below your set point, helping prevent unexpected shutdowns – a key feature for car or motorcycle users.
Q3: Will I lose my settings if the power is disconnected?
A3: No. Thanks to the built-in storage chip, all settings and calibration data are saved automatically. The power-off memory ensures you don’t need to reconfigure after reconnecting the battery.
Tips: How to choose a battery indicator?
- Working voltage range (9V-100V), voltage resolution (0.01V), SOC algorithm accuracy, display type (large LCD with wide angle), low voltage alarm (flashing or audible), temperature measurement range (-20°C to 80°C), and power-off memory.
- Waterproof level for outdoor or marine use, working current (≤20mA), compatibility with different battery types (lead acid, lithium, LiFePO4, deep cycle), and optional communication (Bluetooth, RS485, UART).
- Ease of installation, auto calibration feature, visual clarity from different angles, and price.
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.
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