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 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

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 […]

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