Designed & made in France
🚚 Exceptional order volume since 1 September — allow 3 to 5 days between your order and its dispatch. We are shipping as fast as we can.
🎉 New: meet Pylon-Monitor Lite — the same WiFi monitoring firmware as Pylon-Monitor V2, without the physical screen. €39, same JSON API, same Home Assistant integration. Discover Pylon-Monitor Lite →
🧪 In the lab: we are exploring an optional feature to update your battery's own firmware and adjust its BMS settings — strictly opt-in, and it changes nothing about how your device works today unless you turn it on yourself.
New · €20 cheaper · No screen

The same monitoring.
No screen. €39.

Pylon-Monitor Lite runs the exact same firmware as Pylon-Monitor V2 — State of Charge, voltage, cell health, temperatures, JSON API, MQTT and Home Assistant, all identical. The only thing missing is the physical screen: everything you'd read on it lives on a web dashboard instead, open on your phone, tablet or PC at http://pylon-monitor.local. If you always check your battery from a device you're already holding, this is €20 you don't need to spend.

Order the Lite — €39 Prefer to read it off the box itself? See Pylon-Monitor V2 — €59 →
  • Live in under 2 minutes — captive portal, zero apps
  • Home Assistant ready — MQTT auto-discovery or REST, zero YAML
  • Up to 16 batteries chained — mixed Pylontech models supported
  • Plug & play: 1 RJ45 + 1 USB-C cable, both included
  • Lifetime firmware updates, free and automatic
Pylon-Monitor Lite — compact WiFi monitoring device for Pylontech batteries, no screen, with RJ45 and USB-C cables

What's in the box

Same cables as Pylon-Monitor V2 — this photo is the real thing, not a mock-up.

What's in the box — Pylon-Monitor Lite

Everything else? Identical.

Same firmware, same PCB family, same firmware update channel as Pylon-Monitor V2 — the enclosure and the screen are the only things this model doesn't have.

WEB

Beautiful web dashboard

Open http://pylon-monitor.local from any phone or PC on your WiFi. This is where the Lite's "screen" really lives.

Home Assistant

Home Assistant, done right

Zero-YAML MQTT auto-discovery — 10 sensors appear automatically. Prefer REST? A clean JSON API at /api.json gives you a short, auto-generated YAML paste instead.

WiFi

Plug & Play WiFi setup

On first boot the box creates its own WiFi network. Connect, pick yours, type the password — done.

OTA

Over-the-air updates

New features arrive through a friendly web update page. No cables, no soldering, no skills required.

LAN

100% local, 100% yours

Your battery data stays on your network by default — no cloud, no telemetry, no subscription.

ALM

Configurable alarms

Set your own SOC and temperature thresholds and get a push notification via Pushover the moment either is crossed.

The dashboard is the screen.

Real screenshots — this is exactly what Pylon-Monitor V2 owners see too, since it's the same firmware.

Live dashboard — Pylon-Monitor Lite
Live dashboard Charge, health, temperatures and cells at a glance — open on any phone or PC
Firmware update — Pylon-Monitor Lite
Firmware update Free .bin download, no cables, settings preserved
JSON API — Pylon-Monitor Lite
JSON API The full battery state, one HTTP call
Battery alarms — Pylon-Monitor Lite
Battery alarms SOC & temperature thresholds pushed straight to your phone via Pushover

Pylon-Monitor V2 vs Lite

The only real difference is the screen. Pick the one that fits how you'll actually check your battery.

Pylon-Monitor V2 vs Lite Pylon-Monitor V2 Pylon-Monitor Lite
Price €59 €39
Physical screen 1.8" color TFT None — web dashboard instead
Firmware Same Same
Web dashboard, JSON API, MQTT Yes Yes
Home Assistant auto-discovery Yes Yes
Batteries chained (max) 16 16
High-voltage packs (Force H2 / H48050) Yes Yes
RJ45 + USB cables included Yes Yes
Lifetime firmware updates Yes Yes
Warranty 2 years 2 years
No screen · €39

Pylon-Monitor Lite

€39no VAT
  • Same firmware, same web dashboard, same JSON API
  • No physical screen — read everything on your phone, PC or Home Assistant
  • RJ45 console cable included
  • USB-C power cable included
  • Plug & play — set up in under 2 minutes
  • Lifetime firmware updates, free and automatic
  • Responsive email support
Order the Lite — €39

Ships from Europe · Tracked delivery · Secure payment

Lite — frequently asked

Can I add a screen to the Lite later?

No — the enclosure has no display, no cutout and no mounting point for one. If there's any chance you'll want to glance at the box itself later, get Pylon-Monitor V2 instead; the firmware and every feature besides the screen are identical either way.

Is the firmware really the same as Pylon-Monitor V2?

Yes, byte for byte the same feature set — WiFi setup, web dashboard, JSON API, MQTT/Home Assistant, alarms, OTA updates, multi-battery and high-voltage support. The only code that's different is the part that would draw to a screen this model doesn't have.

How do I check my battery without a screen?

Open http://pylon-monitor.local (or the device's IP address) in any browser on your network — phone, tablet or PC. It's the same live dashboard a Pylon-Monitor V2 owner sees, just not also mirrored onto a physical screen.

Does it support the same batteries, and up to 16 chained?

Yes — identical hardware support: the low-voltage US series (US5000, US3000, US2000, UP2500, Force-L1) and high-voltage Force H2 / H48050 towers, up to 16 batteries chained together.

Which one should I actually buy?

If you want to glance at the box itself for a quick reading with no phone in hand, get Pylon-Monitor V2. If checking your phone, PC or Home Assistant is no trouble at all, the Lite gives you the exact same monitoring for €20 less.