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Ditto......I have two chargers so it takes less time.
))))))))) Good luck ... If you have 2 chargers charge 2 of the batts and when the charger cuts off charge the other 2, If you have 3 chargers and 4 batts , Charge 3 of them and when they are done charge the last one, Here is a trick, If you have 6 - 2 amp chargers you can hook them all up to one batt for and fast and fuller charge than a trickle charger can do alone, ( simple math , 6- 2 amp chargers are 12 volts ) - as the charger's feel resistance they will shut down one at a time, Oh yes they will ))))))))))))))))
Disagree. How does human error produce a dead alternator? Poor system architecture, low temp rated electronics, and inadequate cooling typically wipes out the stock MV alternators, pages of them here of which committed suicide while trying to recharge low SOC (state of charge) batteries after a jump, which is the alternators primary function. In the end, everything can be labeled as human error, but, you have 10 years from your batteries because it simply does not require 4 batteries to start these engines in modest temperatures, regularly. Typical battery will last about 5 years until its performance rating drops below the advertised capacity (CCA, CA, AH, RC, etc...). Sure, it will still work, but is acting like a smaller and smaller battery as it ages. I highly doubt your batteries will test to their advertised specifications at 10 years old. You can charge them one by one with a conventional 12v battery charger, without disconnecting or removing anything. If you can get the truck started via a jump, the 60 amp alternator will charge them faster than a plug in battery charger due to the 60 amp output, unless your plug in charger is 60 amp capable or higher. But there is risk here as doing so at idle will overheat the alternator due to low alternator cooling fan speed, which is what typically happens in the pages of alternator failure here, amongst broken alternator shafts, spun pulleys, etc... Yes, a battery charger can over-charge a battery, unless it is a manual charger with a timer, or an automatic charger.
I was actually going to do this guess I won't.
I disagree, but each their own. When we design and sell alternators to our customers, we don't label them as not being able to recharge the vehicle batteries if low. If we did, our sales would drop to zero. The problem is low quality alternators sourced from the lowest bidder without considering conditions outside of new/normal. These alternators met specifications at the time, so they were awarded the contract to supply them. If the batteries are healthy and just low on charge, they should recharge quickly. You could lessen the stress on the alternator when doing so by increasing the idle speed to improve cooling airflow, opening the hood to allow cooler air to circulate, and leaving the slave vehicle connected and running while doing so also, as it will cut the total load required (power and time considered) of each alternator in half. These units are not only low cost/quality, but they also now have 25 years of heat and vibration cycling on those low cost/quality components. Plus, this is not an off-grid power system, it is a vehicle, and it will experience dead batteries.
