This 36V system comes with two 36V50Ah and a 36V10A waterproof charger giving you a total of 100Ah.  This system is designed for new Vexus and most older Ranger bass boats that have space issues fitting the single King Kong 36V battery systems. You can run them in paralell or on a switch giving you 100Ah to ensure you're powered for multiple days on the water.
 
36V50Ah Battery Specifications
Rated Voltage: 38.4 V
Rated Capacity: 50 Ah
Max Charge Voltage: 43.8 V
Cut-off voltage: 30 V
Charge current: 40 A
Continuous discharge current: 80 A
Max discharge current: 160 A
Dimension: Group 31
Weight: 36 lbs.
BMS Function: Overvoltage protection, undervoltage protection, overcurrent protection, temperature protection, short-circuit protection
UL Certificated 32700 Cylindrical LiFePO4 Cell, 12S14P
ABS Shell
 
Standard Charge
Charge Voltage: 43.8V
Charge Mode: CC-CV
Charge Current: From 5A to 80A
Recommended Current: <40A
Max Charge Current: 80A
Charge High Temperature Protection: 60°C
Charge High Temperature Recovery: 50°C
Low Temperature Protection: 0°C
Low Temperature Recovery: 5°C
 
Standard Discharge
Continuous Discharge Current: 80A
Max Peak Current: 160A for 5 seconds
Discharge Cutoff Voltage: 40V
High Temperature Protection: 65°C
High Temperature Recovery: 55°C
Low Temperature Protection: -20°C
Low Temperature Recovery: -10°C
 
Operation Environment
Charge Temperature: 0°C to 45°C (32°F to 113°F) at 60 +/- 25% relative humidity
Discharge Temperature: -20°C to 65°C (-4°F to 149°F) at 60 +/- 25% relative humidity
Storage Temperature: 5°C to 45°C (41°F to 113°F) at 60 +/- 25% relative humidity 
Water Dust Resistance: IP67