Post by BuckSkin on Oct 21, 2021 6:45:53 GMT
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I was perusing the large selection of used Canon 7D of an EBay vendor and I noticed about 2/3 of the offerings came with this weird-looking silver battery charger, ProMaster Traveller + Multi-Battery Charger.
I have almost as many chargers as I have batteries and we have a LOT of batteries; so, I was not particularly concerned whether I got a charger or not; the camera was my main objective.
Needless to say, the camera I chose came with one of these weird chargers.
So, I did a bit of research to see just what I had became the proud owner of.
The reviews I found are anything but stellar; however, the concept is pretty good.
Although I only received a single "plate"; my understanding is that if you lay down your two crisp twenties for a brand-new specimen, you will receive four or five interchangeable plates that will permit charging a vast assortment of batteries.
As it is, the single plate I received will cover every battery we have = all Canon. (sometimes with a bit of poor boy ingenuity)
The reason I am regaling the attributes of this charger is on account of one very special and very rare detail; it can resurrect Lithium-Ion batteries that have been drained below the point of no return; and, it will sense and charge both 3.7-volt and 7.4-volt batteries.
If you put your camera and batteries away for a year or so without occasionally charging the batteries, you will be very fortunate if the batteries will still take a charge.
I had bought a used Canon point-n-shoot to keep around for my little buddy to use if and when she forgot to bring the one I had already given her.
The nice lady I got the camera from included several spare NB-5L batteries; what she didn't do was to check out the batteries to see if they would still charge; the only one that worked was the one in the camera.
Always the frugal skinflint, I searched the internet and tried all manner of tricks to try and bring life back into these batteries; all to no avail.
I put them in a ziplock with a card saying "Dead Soldiers" and put them away ----- never throw anything away --- never ever.
Bring on this new weird charger with it's magical "booster" button.
None of the numerous charging prongs and battery guides would fit the 3.7volt NB-5L ; however, I was able to manipulate two of the prongs into making contact with the battery terminals and I had to make a spacer/wedge from a stack of pasteboard cut from a TV dinner box and wrapped with masking tape to keep pressure against the battery and hold it firmly against the mis-aligned charging prongs.
I plugged the charger in and pressed and held for three seconds the booster button.
Contrary to what the description said, no red light ever came on; instead, the green, charged, light came on and stayed on for the duration.
After about twelve hours, I removed my first victim to see what we had achieved; this dead-as-a-doornail cannot-be-saved back-side-of-the-farm sink-hole-bound battery was displaying 4.42-volts on my digital volt meter; after all the many tricks I had exhausted in trying to force these batteries to take a charge, I almost could not believe it --- success, and success from a one-star-don't-waste-your-money charger.
One by one, I applied the charger and booster switch to the rest of the dead soldiers and was able to revive half of them.
I will make a few more attempts on the stragglers before I give up on them.
If I were needing a charger for a specific camera/battery, this would probably be way down on my list of choices; however, the fact that it has this booster switch and can revive batteries that have dropped below the point of no return, and the possibility that I may someday need a charger for some weird camera/battery, it is worth having around.
Would I part with two crisp twenties to own one ? Probably NO; but, seeing as I more or less got it for free, it is handy to have around.
I was perusing the large selection of used Canon 7D of an EBay vendor and I noticed about 2/3 of the offerings came with this weird-looking silver battery charger, ProMaster Traveller + Multi-Battery Charger.
I have almost as many chargers as I have batteries and we have a LOT of batteries; so, I was not particularly concerned whether I got a charger or not; the camera was my main objective.
Needless to say, the camera I chose came with one of these weird chargers.
So, I did a bit of research to see just what I had became the proud owner of.
The reviews I found are anything but stellar; however, the concept is pretty good.
Although I only received a single "plate"; my understanding is that if you lay down your two crisp twenties for a brand-new specimen, you will receive four or five interchangeable plates that will permit charging a vast assortment of batteries.
As it is, the single plate I received will cover every battery we have = all Canon. (sometimes with a bit of poor boy ingenuity)
The reason I am regaling the attributes of this charger is on account of one very special and very rare detail; it can resurrect Lithium-Ion batteries that have been drained below the point of no return; and, it will sense and charge both 3.7-volt and 7.4-volt batteries.
If you put your camera and batteries away for a year or so without occasionally charging the batteries, you will be very fortunate if the batteries will still take a charge.
I had bought a used Canon point-n-shoot to keep around for my little buddy to use if and when she forgot to bring the one I had already given her.
The nice lady I got the camera from included several spare NB-5L batteries; what she didn't do was to check out the batteries to see if they would still charge; the only one that worked was the one in the camera.
Always the frugal skinflint, I searched the internet and tried all manner of tricks to try and bring life back into these batteries; all to no avail.
I put them in a ziplock with a card saying "Dead Soldiers" and put them away ----- never throw anything away --- never ever.
Bring on this new weird charger with it's magical "booster" button.
None of the numerous charging prongs and battery guides would fit the 3.7volt NB-5L ; however, I was able to manipulate two of the prongs into making contact with the battery terminals and I had to make a spacer/wedge from a stack of pasteboard cut from a TV dinner box and wrapped with masking tape to keep pressure against the battery and hold it firmly against the mis-aligned charging prongs.
I plugged the charger in and pressed and held for three seconds the booster button.
Contrary to what the description said, no red light ever came on; instead, the green, charged, light came on and stayed on for the duration.
After about twelve hours, I removed my first victim to see what we had achieved; this dead-as-a-doornail cannot-be-saved back-side-of-the-farm sink-hole-bound battery was displaying 4.42-volts on my digital volt meter; after all the many tricks I had exhausted in trying to force these batteries to take a charge, I almost could not believe it --- success, and success from a one-star-don't-waste-your-money charger.
One by one, I applied the charger and booster switch to the rest of the dead soldiers and was able to revive half of them.
I will make a few more attempts on the stragglers before I give up on them.
If I were needing a charger for a specific camera/battery, this would probably be way down on my list of choices; however, the fact that it has this booster switch and can revive batteries that have dropped below the point of no return, and the possibility that I may someday need a charger for some weird camera/battery, it is worth having around.
Would I part with two crisp twenties to own one ? Probably NO; but, seeing as I more or less got it for free, it is handy to have around.
