Trickle Charger $0
A poor fisherman just about got down on his hands and knees and begged to buy my Harbor Freight 10-amp charger. He was amazed at how fast it recharged his "lancha" outboard motor battery. He is now feeding his family again.
So this left me without a way to charge a battery, maintenance style charging. So I dug through a pile of wall outlet chargers and found an old fashioned 12-volt type with transformer. Heavy. Connected it and measured open circuit voltage, 17.6 800 milliamps.
Snip, snip. Off came the plug, and a pair of 5/16" ring terminals were soldered on.
It's been on the battery (group 29 flooded) for around 32 hours now and the voltage has risen to 13.34
Very slow but it's getting the job done. 800 ma is pretty small. It's going to take some time to get all the cells up to 1.280
I thought I'd mention this because a lot of people think it takes fifty dollars to maintain a battery. A lightweight switching charger will not work for this, only a sloppily regulated transformer charger. The charge rate is slow enough to make it idiot proof.
The power supply will arrive at that magic point of voltage plus output in which the battery cannot charger any more. Curious to know where thst's going to end up..
So this left me without a way to charge a battery, maintenance style charging. So I dug through a pile of wall outlet chargers and found an old fashioned 12-volt type with transformer. Heavy. Connected it and measured open circuit voltage, 17.6 800 milliamps.
Snip, snip. Off came the plug, and a pair of 5/16" ring terminals were soldered on.
It's been on the battery (group 29 flooded) for around 32 hours now and the voltage has risen to 13.34
Very slow but it's getting the job done. 800 ma is pretty small. It's going to take some time to get all the cells up to 1.280
I thought I'd mention this because a lot of people think it takes fifty dollars to maintain a battery. A lightweight switching charger will not work for this, only a sloppily regulated transformer charger. The charge rate is slow enough to make it idiot proof.
The power supply will arrive at that magic point of voltage plus output in which the battery cannot charger any more. Curious to know where thst's going to end up..
