Well ever since they came to market, I've heard fantastic and wonderful things about it, and have always had the seed of a plan firmly in my head to get myself one .. so one day a while back, I happened upon one with little effort on my part and got one.... the MAHA MH-C9000 WizardOne Charger-Analyzer
in a word ..... bollocks!
sorry to offend anyone, but it's not the super duper uber charger you were mistakenly lead to believe it is.
it's good, it works, that's for sure, but as a piece of kit to annul the human condition of fear and indecisiveness(with respect to the topic of the health of your rechargeable batteries) .. it fails.
Actually, it doesn't really fail, so much as it doesn't really pass with flying colours.
My take is that it was a waste of money.. but I did it now, as some other folks already have, and that's that!
I can't recommend it, especially considering the considerable expense.
FWIW, I have about three of four NiMH battery chargers and they all had a specific purpose.
I had a fast charger for when that emergency arose, I have another trickle charger with capacity for 4 batteries as well, and I then got myself a 10 bank trickle charger from Jaycar many years ago now, as my collection of NiMH's grew.
That 10 bank charger has been my preferred charger for all that time, and I usually left the batteries plugged in for long periods to keep them topped up.
Usually you're supposed to not do this with NiMH's, but I was also advised that sometimes it's wise not to believe everything you read.
(I guess that goes for this quick review as well! )
Anyhow, I've had a few of the 20 (or more collection) of Jaycar rechargeables I have play up, and I wanted to be sure of which required reconditioning, and which were beyond help.
So I finally got this much hyped charger analyser and proceeded to analyse and charge.
I disposed of a few of the ones marked by the charger as unfit not long after I got the MH-C9000. And now I'm thinking that may have been a bad choice.
This 10 bank Jaycar charger also has the ability to determine if the battery is beyond help, but in a very basic manner in the form of a small LED lamp. Red for bad, green for good.
Actually how it works is that it flashes red when discharging, or is bad, solid red for charging and green for charged.
As we all know the MH-C9000(henceforth called the 9000! displays much more detailed info.
So, the problem. I have two sets of two batteries, that I know work well. One set is 2400mAh and the other set of two are 2500mAh.
Over the past week, I've been trying to get these two sets to charge/discharge .. or analysed, or refreshed or whatever using the 9000!, and it's been a no go.
It refuses to do anything to them .. other than say HIGH.
I know these (4)batteries have a lot of life left in them yet .. because they've been in active use for the past few weeks in whatever device.
I've been slowly going through the process of analysing and refreshing as many batteries as I can(remember too), and I finally got to these two sets.
So, the problem is that these two sets, won't charge or discharge or do anything via the 9000! .. but they charged perfectly fine using the cheaper, old banger Jaycar 10 bank charger.
I was a bit sceptical of the charge they may recieve, but they charged up and were tested a few days back(and again as I type).
The test involved a pretty heavy going GPS test. These old hand held GPSs are well known for they ability to strain and drain batteries.
A fresh set of average alkalines would last for about 10 hours continuous use, and a set of NiMH just a touch less on average .. sometimes more, but that's dependant on satellite lock and reception.
So the past few days saw the GPSs both on for at least 8-10hours, and I think even more!
As this is not a test of the batteries ability in themselves, and more of an assessment of the charger .. what can this say about the charger.
it's has never allowed me to charge these batteries over the past week that I've tried. It's working 'beautifully' on all the other batteries refreshing and charging and so on .. but according to this charger these two sets are beyond serviceable use now.
YET!! having placed them on the old basic Jaycar charger, they topped up as expected, and have provided the almost perfect level of service that I expected after a full charge.
From this, one can conclude only one of two scenarios!
I'm dreaming and these two battery sets have not powered the GPSes for a day already and doing it all over again today, or that the MH-C9000 is a waste of money!
I say a waste of money, as it doesn't allow the user any option to force charge a battery in any way.
had I relied only on this 9000! as my sole battery charging solution, I'd have disposed of 4 perfectly good rechargeable batteries!
On the other hand, the Jaycar charger has one option on it. That is to discharge the battery with the press of a small red button. Otherwise it charges.
If the battery is not serviceable, it flashes red for that bank.. ie time to throw it out.
Where the 9000! failed the Jaycar charger came through ... not only did I waste my money on this MH-C9000, I almost wasted more money in dumping some perfectly capable batteries, and I may have already dumped some perfectly capable batteries earlier having gone through it all a while back.
I suppose it's just something to be mindful of, rather than a major rant and rave against a product.
FWIW, the two GPSes are a Magellan Meridian Color and a Garmin GPS76, both of which use two AA's. The Garmin struggles to maintain a lock and is continually searching which reduces battery life.. but both have been running again currently for 4 hours, with these supposedly unserviceable batteries for the second day running.