Myself, I never leave a "bad boy" or even a manual charger unattended. For any charging or maintenance being performed. I control the variable charger with voltage and amperage readings combined and with battery type in mind. For flooded bats, I have dumped over 30 amps at 15 volts into them with my "bad boy" and I always ensure the bats are isolated from any loads or other connections. I watch the meters and drop the charge as the amps go down and voltage goes up.
Basically a big bulk charge with no finishing or float. I leave those functions to the smart chargers!
From: "mainecruising@yahoo.com" <mainecruising@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Monday, December 9, 2013 9:41 PM
Subject: Re: [Electric Boats] Inexpensive variable power supply?
Basically a big bulk charge with no finishing or float. I leave those functions to the smart chargers!
mattelderca
On Wednesday, December 11, 2013 12:15:43 PM, oak <oak_box@yahoo.com> wrote:
What is your process for charging batteries directly from a power supply?
Do you set a constant current, then walk away for NN hours?
Or do you set a voltage, and apply that to the batteries (overnight, several hours?)?
John
From: "mainecruising@yahoo.com" <mainecruising@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Monday, December 9, 2013 9:41 PM
Subject: Re: [Electric Boats] Inexpensive variable power supply?
I have a couple of Mastech variable power supplies I use. One is a 30A X 30V and the other is a 50A X 30V. The make them in all sorts of voltage/amperage sizes.. I use them for charging LiFeP04 and LA batteries.. In the shop it is all I use for charging 2V, 6V or 12V batteries...
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