Bluetooth Battery Monitor 0-120 V 100-600 A | KL-F Coulomb Counter
Bluetooth Battery Monitor 0-120 V 100-600 A | KL-F Coulomb Counter - Kl110f-100a Free standard shipping to supported destinations. See the shipping policy for preparation and transit estimates.
Need help choosing? Tell us what you need to measure.
Shipping & returns
Shipping & returns
Free standard shipping is available to supported destinations. Delivery time includes order preparation and transit and varies by destination. See our shipping policy for current delivery estimates and availability.
See our return policy for return conditions. For an order-specific delivery question, contact Mcooh.
Bluetooth Battery Monitor 0-120 V 100-600 A | KL-F Coulomb Counter - Kl110f-100a Free standard shipping to supported destinations. See the shipping policy for preparation and transit estimates.
Choosing the right instrument?
Tell us your measurement range, material or target, and operating conditions.
Description
Description
Know Your Battery—Anywhere, Anytime
Stop guessing State of Charge. The KL-F Bluetooth Battery Monitor measures voltage, current and coulomb count up to 120 V / 600 A, pushing live data to your phone so you can protect expensive LiFePO4, AGM or lead-acid banks in RVs, solar cabins, boats and forklifts.
Key Features
- 0–120 V, 100 A · 400 A · 600 A Options—choose the shunt that fits your system.
- Coulomb Counting & SOC %—accurate amp-hour tracking for true capacity insight.
- Bluetooth + Free App—configure alarms, view historical curves, push OTA firmware.
- Smart Protections—relay-driven cut-off for over-voltage, under-voltage, over-current, over-temp.
- Color-Code Current Flow—green = charging, blue = discharging at a glance.
- Self-Calibration & 0.4 W Stand-By—long-term accuracy without draining the pack.
Typical Use Cases
- Off-grid & RV solar systems—balance charge/discharge cycles on LiFePO4.
- Marine & yacht house banks—avoid deep-discharge damage while cruising.
- Golf-cart / forklift conversions—monitor high-amp lithium upgrades.
- Telecom backup & UPS cabinets—24 V / 48 V SLA or LFP strings.
- DIY powerwalls & battery labs—log AH / WH for cell testing.
Technical Specifications
| Model | KL110F | KL140F | KL160F |
|---|---|---|---|
| Voltage Range | 0–120 V (self-power 10–80 V) | ||
| Current Range | 0–100 A | 0–400 A | 0–600 A |
| Resolution | 0.01 A | 0.1 A | 0.1 A |
| Accuracy | Voltage ±2 % + 3d; Current ±5 % + 10d | ||
| Bluetooth Range | ≈ 10 m / 33 ft | ||
| Sampling Rate | 1 Hz | ||
| Protections | OVP, UVP, ±OCP, OPP, TEMP | ||
| Power Draw | ≈ 0.4 W | ||
Package Contents
- KL-F Battery Monitor Display
- Matching Shunt (100 A / 400 A / 600 A)
- 4-pin & 3-pin Cables
- Temperature Sensor Probe
- Ring Terminals & Mounting Screws
- User Manual (EN)






