Location: Northern Illinois | Yes I run 4 helixs on my 621, Just make sure you have the biggest group 31 battery available on the market, Look for the highest reserve capacity and the highest marine cranking amps. I went with -
Item Number: SLI31AGMDPM
Brand: X2Power
Voltage: 12
Format: BCI Group 31M
Lead Acid Type: Deep Cycle, Dual Purpose (Starting/Cycling), Starting
Capacity: 100AH
Cold Cranking Amps: 1150
Reserve Capacity Minutes: 220
Battery Type: Ultimate
Capacity 20hr: 100AH
Lead Acid Design: AGM
Made in the USA: True
Marine Cranking Amps: 1370
Product Category: Marine/RV
Product Sub Category: Premium AGM
Edited by muskyhunter07 1/15/2020 11:38 AM
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