I just purchased two 100ah batteries from Aolthium Canada web site .
I received them in January so have not used them yet but they look to be very good quality .
They also have bluetooth so you can see on your phone the state of charge and current draw
$599.00 with free shipping to canada .
Make sure you are on the Canadian web site , they have sites for different countrys .
They have tear down videos that show the quality of the parts they use .
I am happy with my purchase so far , but have only charged them up to store until April .
I check the state of charge on my phone just to see how they are holding a charge and they have not lost any power yet .
Try , www.boats.net
I have ordered from them for motorcycle parts as well .
They have online parts manual for all makes , Mercury , Yamaha , Suzuki , Honda , Johnson , Nissan , Evinrude , OMC .
Fast service too !
Let me introduce myself . My name is Don , I have never posted or replied before until now , but I know what you are going through . I have suffered with cluster headaches all my life (57yrs). It has only been the last 6 years I was properly diagnosed . My new docter prescibed AMERGE (NARATRIPTAN) . You only take it at first sign of an oncoming headache , it has worked for me every time within 15 minutes . I could not sit back and let a fellow fisher suffer !