New Master/Slave Network Wiring Video
If you’re building a large High current or High voltage BMS you will want to use the REC Master/Slave configuration. This handy video will step you through the cabling connection process to set up your RS485 network.
SMA Quickstart Guide
One of our great dealers just put together a preliminary Sunny Island 6048 to REC 2Q BMS Quickstart Guide to help people setup and integrate our REC 2Q BMS with the SMA product line of inverters. A big shoutout to Fred! You can download it here: https://rec-bms-na.com/download/41/rec-2q-series-bms/1545/rec-2q-series-and-sma-sunny-island-communication-setup-guide.pdf
REC BMS releases new Active BMS firmware 2.9.4
Just released Aug 23-2024 REC Active 2.9.4 BMS release Notes https://rec-bms-na.com/download/8/rec-active-bms/1538/rec-abms-2-9-4-bin-files-aug-23-2024.zip
REC Active BMS Firmware 2.9.3 Released
Now available Includes minor tweaks for better alternator/WS500 control at low RPMS You can find it here:
REC 2Q Firmware update 1.5 now released
REC 2Q Release notes Version 1.50 May 15, 2024 Download new manual and update from here: https://rec-bms-na.com/product-manuals/#7-41-wpfd-rec-2q-series-bms
REC BMS Wi-Fi Module Firmware update 1.6.3 just released
REC BMS Wifi Module Revision History and Change Log March 28, 2024 Release 1.6.3 Change log info And you can find it here: https://rec-bms-na.com/product-manuals/#7-12-wpfd-rec-wi-fi-module
New High Voltage Master-Slave Sample wiring Diagram now available
With more customers looking for high voltage battery solutions we added this sketch to our library to assist with system design. Both PDF and xml editable versions are available.
Nissan Leaf Cell pack Wiring Diagram now available for download
With many Nissan Leaf cell packs hitting the market, we have had quite few customers using the REC-2Q BMS in combination with Victron, Sunny and many other inverters for backup, off grid, RV and marine applications. The 6.6V packs make it look a bit intimidating so we have created a couple of sample wiring diagrams […]
REC 2Q BMS Overview Video just released
This is a quick introduction to setting up your 2Q BMS using the WiFi module and connecting to an SMA Sunny Inverter.
Active BMS Firmware update 2.9.2
REC has just released firmware update 2.9.2 for the 12V Active BMS. REC Active 2.9.2 BMS release Notes 2.9.2-1.bin (one main relay/contactor)2.9.0-2.bin (two relay/contactors, with separate OV UV trip functions) For split bus systems only