Forum Discussion
- Better check again. Many companies charge say 11 dollars for shipping but pay actually six or seven. It's a widespread scam.
Like AMAZON and their AMAZON PRIME
Price AMAZON PRIME $33.34
Price regular free shipping $26.59
At least they're upfront about it.
Another eBay mouth drooler. Order and shipping instructions clearly state WILL ARRIVE BY OCT 15. A week later after digging through the site and asking where the stuff is, the announcement says SHOULD ARRIVE BEFORE NOV 2
Used car salesmen ethics. This is the rule down here. - I ordered one of these from Northern tool on the 28th.
Its the 9th today still no show. Tracking shows that it is in the local area now.
Hard to believe a little bitty package like this is coming UPS, the slowest, most expensive shipping there is. - I just happen to be a believer in the DelTran maintainers. The 750 milliamp is 26.73 on Amazon - free ship.
Anyhow the junior model has always performed great for me. - I used the above link to order a BatteryMINDer on Cyber Monday from Northern Tool for $19.99.
Today (Tuesday) Northern Tool does indeed show a higher price of $24.99.
I don't care/know how one interprets the output waveform of the BatteryMINDer ... I gave my O'Scope away a long time ago so I can't check out whether it's putting out a steady stream of DC pulses for battery maintenance or a long duration constant DC voltage periodically replaced by a shorter burst of DC pulses for battery maintenance.
I do know that I got 6 or more years out of my motorhome's Ford OEM liquid acid chassis battery by keeping a BatteryMINDer on it the whole time when not on the road. That Ford battery was probably still "pretty good" when I replaced it, but I replaced it to help ensure high reliability on our RV when on trips. I've never gotten 6 years out of any engine starting battery when just left it in a vehicle the whole time with no maintainer on it - like I used to do before I bought my first BatteryMINDer. - I just converted a 22-dollar Cheapowatt coupled to a 20 amp auto reset breaker to get a 25 amp rated float charger with a 20-amp safety cutoff. The sealed units are great for weather but they are not large enough for a bank of batteries and larger float chargers are like diamonds - twice the size, six times the cost.
But for single battery use especially where weather is a factor, it's tough to beat a small sealed maintenance charger.
Señor Almot I do indeed know what these units are for :)
But promoting "pulse desulfation" with something that operates at that PWM frequency anyway is pure hooey. The whole time the thing is plugged it it is at 3.4MHz. Big deal. Want pulsing? Use an old fashioned center tapped transformer charger. About 10,000 times the pulse energy. Pure P.T. Barnum fodder. - It was a one day sale @ $19.99
Still good value @ $24.99 otrfun wrote:
BatteryMINDer Plus $19.99
Link shows Battery minder $24.99- I have only one and have switched it around for years to maintain our home's backup generator battery, our boat's battery, and most recently for several years to maintain are RV's engine battery 24/7 while the RV is parked in our back yard. I plug the BatteryMINDer's input into an RV 120V receptacle and it's output into a 12V always-hot receptacle on the cab's dash. The RV itself is plugged into a 120V receptacle on the side of the house 24/7.
I just ordered another one at that great price through the link that otrfun provided above .... thanks otrfun! I paid way more than that way back when for my first one.
Sometimes this "black Friday"/"cyber Monday" stuff is more than just hoopla ... I just today also ordered a new SOTA flat screen TV at a bargain basement cyber Monday price. - Mex - this is not a charger, you don't need me to tell you this. This is a "minder". For storage only. 4 AH in 4 hours is plenty when you're dealing with self-discharge only.
- It would be to the U.S.A.
The stupid PWM control circuit operates at 3.26 MHz. Wotta con job. Instead of utilizing a menu driven (reverts to float voltage), the manufacturer puts a TIME LIMT on wide open meaning uncontrolled charging. How much can 1 ampere of charging install even if left on for four hours. Four ampere hours. BUT WAIT THERE'S MORE! The unit CAN NOT produce 1 ampere of current at VMax.
Still, it's a good thing for batteries in storage.
Consumers with no idea of how this stuff works eat the gizmo krap up and ask for seconds.
