![]() Its smarter than some other maintainer/desulfater units since it is long-term storage friendly - meaning that if the AC power goes out, the unit will shut itself off preventing any current drain on the DC batteries. The big charger will shut itself off as it normally does when the batteries are charged, and this one will automatically pick up and keep it maintained and desulfating. It also allows you to hook up your big charger and this one at the same time after a long ride so you can forget about it. Model 48021 has the desulfator and adds a built-in 2A maintainer keeping the battery pack topped off at the ideal level - yet is small enough to mount on-board if you would like to (you still need an A/C power source). Hook it up once and never touch it again.On-Board mounting, out of the way, no AC plugs to plug in.This is also the perfect unit if your big charger already has its own maintenance mode to keep the batteries topped off. This is convenient if you travel around a lot, campsites, hunting camps, friends house since you don't need to carry a separate unit around to desulfate because its already mounted in the cart with nothing to plug in. As soon as it drops below that preset level - it kicks back off. It does this by detecting if the voltage is above a certain level, if it is then it kicks on. Model OBD-48 is an on-board desulfator (not a maintainer) that only desulfates while the cart is being charged by another source. One of them, BatteryMINDER (of which I'm a huge fan), makes several different different models with different features. I have not yet seen any tests done to distinguish which company has developed the best algorithm - all the Major brands seem to work well. ![]() However the exact method of "Desulfating" is patented so each company does it a little differently to not infringe on the other. There are a bunch of different Brands of desulfators, you are basically paying for the features you get. This stuff is addictive.īecause I can relate VERY well to these rabbit trails you speak of Ill elaborate a little of some of the same stuff already said in other posts. Yeah but when I did that I was here for hours reading up on this stuff and chasing other "rabbit trails". Maybe that would have to be a new thread? I would like to hear from some that have exceeded that. I have heard folks say that the average is about five years. I am curious as to how much longevity one can get from a battery pack. I have an old Series CC DS and she has a Yamaha with regen, and VERY slow. I'd have to say she drives a minimum of ten miles per day, going to the pool in the mornings, running to the grocery store afterwards, and going to someone's house or the rec center to play cards or mahjong. She uses her cart every day and drives the crap out of it before returning home. I might have to wait until she goes up North again this summer to visit relatives. I am curious as to what the maintainer will do with her's IF I can get her to leave the cart long enough for me to experiment. Right now, I have a cheapo battery desulfator hooked up to her battery pack. Now that I know what to expect with my fairly new batteries, I want to see what I can do with my wife's OLD batteries. Of course, I did NOT disconnect it and let it sit over night as I do usually with the regular cart charger. It appears as if the maintainer tops the regular charge off a bit, adding a few volts. ![]() I always connect the charger after using the cart, even if I only go a short distance. These Trojan batteries are about a year old and have been well maintained. I guess I drove the cart about six miles round trip and when I got back, the meter showed where it would normally show the day after I had finished using the regular charger(middle to high white area). The analog battery meter showed the charge in the top red area, which the regular charger doesn't ever reach other than when it is at it's surge charge mode. I needed to make a trip down to the Ace hardware store for some weed killer. There was a steady yellow light, indicating that it was finished charging and in the maintenance mode. Everything went as described and the maintainer finished charging the battery pack in a couple of hours. It had been a couple of days since I had used/charged the cart. So, I hooked the save a battery maintainer up to my golf cart, using the alligator clips (for lack of a better description).
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