The green stamp is on all BMPRO products that are approved and compatible for the use with Lithium LiFePO4 batteries. If this stamp doesn't appear on your BMPRO product, then it won't be Lithium LiFePO4 compatible. For Lithium LiFeP04 compatible products and Lithium LiFePO4 information, check out the NEW Lithium Knowledge Centre for all the latest information
https://teambmpro.com/lithium-knowledge-base/