Looking to upgrade your solar energy monitoring system but don’t have modern LiFePO4 Batteries with Bluetooth capability? You don’t need to upgrade your batteries.
The Battery Shunt 300 is specifically designed for communication between the Renogy ONE Core monitor and any deep cycle battery, regardless of brand name or chemistry. This small piece of equipment finally provides the wireless link between older lead acid batteries (flooded, Gel, AGM) and non-Bluetooth capable LiFePO4 batteries with the latest generation of wireless remote monitors. So, you can upgrade your monitoring system without having to upgrade your batteries…yet!
The Battery Shunt 300 and the Renogy ONE Core allow you to monitor your battery level, your solar charging input, your current energy usage, in addition to many other features from anywhere, anytime. So long as your Renogy ONE Core has a wifi connection, you can connect wirelessly anywhere your smartphone has a data signal, through the DC Home App. Connect the Core monitor to the smart devices and you’ll have an off-grid smart home that can monitor security, energy and temperature from anywhere.
Important Links
Battery Shunt 300: [ Ссылка ]
Renogy ONE Monitors -- See all of our reviews here: [ Ссылка ]
Review
We got this shunt back in the Fall 2023, to install and product test. While we initially had problems connecting the shunt to the Renogy ONE Core, due to a firmware issue. After doing the steps below we got it up and running. Since then it's been working and reporting data back to the Core without problems.
Since this was just for testing purposes we kept our BT-2 module connected to our LFP Smart Batteries, so that we could check on accuracy.
Here's what we found:
1. The Shunt is performing as expected, and reporting the data back to the Core monitor seamlessly.
2. We noticed a discrepancy between the shunt and BT-2 module in reporting battery SOC% (up to 8% discrepancy). The BT-2 module gets its data from the BMS which is more accurate than the shunt that predicts the state of charge based on the measured voltage.
3. The latest firmware fix now allows the Battery Shunt to default to the Core home screen. If it doesn’t do this automatically, go to “Settings” and then choose “System,” then change the SOC Source Setting.
For anyone having connection issues between the Renogy ONE Core and the Battery Shunt 300, try manually updating the firmware by doing the following:
- Go to Settings
- System
- About
- Check for updates
- Update
When the Core restarts, click Add Device, then pairing with the shunt should be immediate. Remember the Core will have to be connected to Wi-Fi in order to do this.
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Disclaimer: Most of the videos we make include affiliate links and paid sponsorship, this helps keeps our information free and us on the road (10 years and counting!).
This video is intended to help users plan, organize, calculate, and install a personal DIY solar powered electrical system. We, Shari & Hutch (Freedom in a Can, LLC), are neither professional electricians nor solar installers; we are educators who have learned to install our own system and to empower others to do the same. If you have questions, reach out in the comments section and we'll get back to you.
If you need further assistance beyond our advice, consult a solar professional or certified electrician. Electricity is dangerous, so do your homework, take it one step at a time, and good luck!
