Lithium Battery 24VDC - 200AH - Smart LifePO4
Features:
With integrated cell balancing
Can be parallel and series connected 
Bluetooth app available to monitor cell voltage and temperature
Requires one of these BMS-es:
VE.Bus BMS – recommended for systems with our inverter/chargers.
smallBMS – recommended for use in small systems. 
Battery Management System BMS 12/200 – recommended for use in Automotive and Marine systems having DC-loads and Alternators.
Smart BMS 12/200 - recommended for use in Automotive and Marine systems having DC-loads and Alternators. 
Smart BMS CL 12/100 – recommended for use in Automotive and Marine systems having DC-loads and Alternators.
Lynx Smart BMS - recommended for use in large systems.