Forum Discussion
S_Davis
Jun 13, 2019Explorer
MEXICOWANDERER wrote:
I haven't done this but it might be a wise idea to divide $ by amp hours and see if there's a valid difference between the two BCI sizes.
Four 4-D's make sense. Suddenly the last 20% of charging means not 10 amps but a 40 amp charge rate. This makes the running of a generator much more valid. With my wet Rolls batteries 100 amperes is quite near where the specific gravity readings tell me to revert to float. And that is = to 2,800 watts.
Weight, space, and initial cost are the counterpoints and with AGM it is vital that the first 90% of your charge regimen reaches 20% of total amp hour capacity of the bank IF THE BATTERIES ARE DRAWN DOWN to 50% amp hours remaining. Means discharging to deep cycle exercise. This high amperage can be reduced to 10% if recharging occurs when remaining ampere hours total 60% of total capacity. Around 75% remaining amp hours the necessity of a minimum amperage recharge vanishes but the bank requires a full recharge every 2 weeks or so.
A 36 amp Megawatt feeding off a small 1000 watt generator for 5 hours will take the sting out of this top charging. Let the gen run out of gas as a foolproof timer. Any time the regular onboard charger dips below 40 amps charge, revert to the Megawatt and tiny generator and save a lot of money in fuel. This only happens when top charging.
I am presently residing in a stick and brick house. My consumption of electrical averaged over 24 hours ia NINETY SEVEN WATTS
I am planning on using the 120amp charging from the truck and then using a Outback VFXR2812 that has a 125amp charger. Bulk charge at 14.4 from the truck and Honda 2200 watt gen or shore power and Outback for fully charging. So should I stick to just two of the 8D with a max 125amp charging rate?
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