This might be a good way to go for folks with smaller generators.http://www.ebay.com/itm/Mean-Well-SP-320-15-AC-to-DC-Power-Supply-Single-Output-15-Volt-20-Amp-300-Watt-/111460542314?pt=LH_DefaultDomain_0&hash=item19f390e76aPretty good price, too!

That particular unit says it employs hiccup mode protection on current overload.http://www.onlinecomponents.com/datasheet/sp32012.aspx?p=11953405I believe one requires constant current limiting on Overload for depleted battery charging. This one does, for ~35$http://pge.powergatellc.com/product_info.php/products_id/5258?osCsid=cq155jso42fiabsv7dj3j81ft3vn314vn0h1v8d11rciqnddat90http://www.meanwell.com/webapp/product/search.aspx?prod=se-200My MW rsp-500-15 gets a workout. Just yesterday it held 40 amps for an hour straight charging a fairly healthy starting battery that had been depleted to 9.23v. 14 hours after removal from meanwell, battery is at 13.14v. It was interesting to watch the inline watt meter during the first few minutes. It only wanted 23 amps at first, and voltage instantly rose to 14.45, but a minute or 2 later voltage had dropped to 12.93v and the battery was gobbling up 40 amps.

The idea is to match current potential with charge acceptance of the battery. No this will not replace a converter. It is designed and intended to recharge batteries from a nominal 12.0 voltage start point. If it hiccups 26 times in the recharge, so be it. Wimpy generators are hard to work with because voltage peaks get slaughtered.

mex, i believe that unit will act like my turnigy 1080w, and shut down, but i could be mistaken? the peak current at start up causes the foldback current protection, i believe it is, to drop voltage, and thus current, to zero.

landyacht318 wrote:My MW rsp-500-15 gets a workout. Just yesterday it held 40 amps for an hour straight charging a fairly healthy starting battery that had been depleted to 9.23v. 14 hours after removal from meanwell, battery is at 13.14v. It was interesting to watch the inline watt meter during the first few minutes. It only wanted 23 amps at first, and voltage instantly rose to 14.45, but a minute or 2 later voltage had dropped to 12.93v and the battery was gobbling up 40 amps.I'm gonna ask the dumb questions, but maybe they will help someone else who is lurking :).Until I read the other thread, I thought all meanwells we user-adjustable, for output voltage. But I guess they also have a self adjusting option? And that is the norm, and what you are referring to here? Or are you talking about voltage of the battery, not the meanwell output voltage?

Sorry Naio, did not mean to confuse. This was just a different observation of battery charging compared to what I have observed a hundred or more times now with my adjustable voltage Meanwell and its attached watt/volt/amp meter/counter.I had the Meanwell set to 14.45v when I plugged it into the over depleted starting battery which had measured 9.23v on my multimeter when the owner dropped it off to me.I am used to seeing a 50% depleted battery just slowly climb toward 14.X at a solid 40 amps until battery voltage approached the my desired 14.x set voltage of the meanwell, and then amps would taper.This over discharged 3 year old starting battery instantly rose to 14.45V and it only required 23 amps to get there. But after 30 seconds to a minute of slapping this battery upside its head, the voltage had dropped as the battery decided to stop resisting the meanwell's full available current. It was like removing all the hair and junk obscuring the drain on a sink.I had heard about this behavior on an over discharged battery, I had just never witnessed it, and it was neat having the tools to watch it occur in real time.I did notice the battery getting hot at 40 amps, and I wound up dialing the MW voltage all the way down( 13.12v) in an attempt to lessen the amperage. It worked, and the rapidly climbing battery temperature levelled off and began to drop, with a fan on it. I just came back every 15 to 20 minutes and kept bumping up the voltage little by little trying to keep it under 25 amps. Soon it was at 14.45v and I just held that Constant voltage, Absorption stage, for about 6 hours, unmonitored as Friday night occurred. It was only taking 1.23 amps after those 6 hours at 14.45v.And I will stand by my opinion that one desires constant current limiting on overload, rather than automatic shut down until overload is removed, or hiccup mode on current overload.But if one is only starting this Meanwell after another charging source has gotten the battery to absorption voltage for a while, then that works too.I personally wanted an All in one charger, equalizer, and float voltage converter. I got sick of weighing the compromises when comparing/researching other charging sources. I love the MeanWell's freakish ability to bend any LA battery to my will. It cost me 127$ delivered, but I put another ~30$ into it with quieter additional fans, and 1K ohm 10 turn potentiometer, and solder and the Wattmeter inline on 8awg with 45 amp powerpole, was another 25$ or so. ----Distant maniacial laughter fading-----Thanks Mex, for turning me onto the possibility of a Powersupply as an adjustable voltage, Kick burro manual charger.

20 Amp 15-Volt Meanwell For Smaller Generators | Good Sam Community

Naio
Explorer II
Jun 28, 2015
landyacht318 wrote:

My MW rsp-500-15 gets a workout. Just yesterday it held 40 amps for an hour straight charging a fairly healthy starting battery that had been depleted to 9.23v. 14 hours after removal from meanwell, battery is at 13.14v. It was interesting to watch the inline watt meter during the first few minutes. It only wanted 23 amps at first, and voltage instantly rose to 14.45, but a minute or 2 later voltage had dropped to 12.93v and the battery was gobbling up 40 amps.

I'm gonna ask the dumb questions, but maybe they will help someone else who is lurking :).

Until I read the other thread, I thought all meanwells we user-adjustable, for output voltage. But I guess they also have a self adjusting option? And that is the norm, and what you are referring to here? Or are you talking about voltage of the battery, not the meanwell output voltage?
jrnymn7
Explorer
Jun 28, 2015
mex, i believe that unit will act like my turnigy 1080w, and shut down, but i could be mistaken? the peak current at start up causes the foldback current protection, i believe it is, to drop voltage, and thus current, to zero.
MEXICOWANDERER
Explorer
Jun 28, 2015
The idea is to match current potential with charge acceptance of the battery. No this will not replace a converter. It is designed and intended to recharge batteries from a nominal 12.0 voltage start point. If it hiccups 26 times in the recharge, so be it. Wimpy generators are hard to work with because voltage peaks get slaughtered.
landyacht318
Explorer
Jun 27, 2015
That particular unit says it employs hiccup mode protection on current overload.
http://www.onlinecomponents.com/datasheet/sp32012.aspx?p=11953405

I believe one requires constant current limiting on Overload for depleted battery charging.

This one does, for ~35$

http://pge.powergatellc.com/product_info.php/products_id/5258?osCsid=cq155jso42fiabsv7dj3j81ft3vn314vn0h1v8d11rciqnddat90

http://www.meanwell.com/webapp/product/search.aspx?prod=se-200

My MW rsp-500-15 gets a workout. Just yesterday it held 40 amps for an hour straight charging a fairly healthy starting battery that had been depleted to 9.23v. 14 hours after removal from meanwell, battery is at 13.14v. It was interesting to watch the inline watt meter during the first few minutes. It only wanted 23 amps at first, and voltage instantly rose to 14.45, but a minute or 2 later voltage had dropped to 12.93v and the battery was gobbling up 40 amps.

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