FAQ

Frequently Asked Questions

Everything most people ask before and after setting up JK BMS Remote. Pricing question not answered here? See the full breakdown on the pricing page.

RAPID HARDWARE TRIAGE

Self-Service Diagnostic Guide

ENGINEERING RESOLVED

UART / RS485 TIMEOUT

No packet header received from JK-BMS within 3,000ms.

• Ensure Baud is fixed at 115200 8N1

• Swap GPIO16 (RX) and GPIO17 (TX)

• Confirm DC-DC share common ground

MQTT BROKER DROPS

ESP32 gateway losing socket connection to the cloud broker.

• Verify Port 8883 egress is open

• Check Wi-Fi RSSI is > -75 dBm

• Re-flash latest firmware with OTA

DELTA ANOMALIES

Single cell voltage showing unexpected spikes or dropoffs.

• Inspect balance wire ring terminals

• Verify active balancing current < 2.0A

• Cross-check with high-precision DMM

Getting Started

What do I need to get started with JK BMS Remote?

Do I need any technical or networking experience?

How long does setup take?

Compatibility

Which BMS brands does JK BMS Remote support?

What if my exact BMS model isn't listed?

Hardware

Do I need to buy a specific gateway, or can I build my own?

Is wiring the gateway to my BMS safe?

Pricing & Billing

Why are there two separate charges — a license and a subscription?

What does a paid Cloud Service tier actually pay for?

What happens if I stop paying for a Cloud Service tier?

Is there a discount for multiple gateways?

Can I get free access or a discount if I can't afford it right now?

Data & Privacy

Where is my data stored?

Who can see my battery data?

Can I delete my account and data?

Mobile App

Is there a mobile app?

How do I get alerts on my phone?

Reliability

What happens to my battery if my WiFi goes down?

What if JK BMS Remote's cloud has an outage?

Can JK BMS Remote change settings on my BMS, or is it just read-only?

Support

How do I get help or report a bug?

Where can I see what's changed recently?

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