expired Posted by aepro | Staff • Oct 11, 2024
Oct 11, 2024 7:23 PM
Item 1 of 1
expired Posted by aepro | Staff • Oct 11, 2024
Oct 11, 2024 7:23 PM
Amazon Basics 4-Bay Battery Charger + 4 AA 2000mAh Rechargeable NiMH Batteries
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$17
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With most people using batteries in pairs, the limitations of a 2-channel charger shouldn't be significant. However, note that you don't have to pay a million dollars more for a comparable 4-channel model (where each battery is recharged independently).
In fact, IKEA has their model [ikea.com] widely available for $7.
Alternately, Costco has often sold a four-channel charger in starter kits (so with batteries) for under $20.
Good luck!
Jon
The biggest problem is that rechargeable AA batteries have a nominal voltage of 1.2v as opposed to 1.5v of a typical battery. For some devices this works fine, but I have simply run into too many instances were they don't work, or only work for a very short period of time. Some devices, for example, require six AAs. That would normally be 9v, but with 6 rechargeables it's only delivering 7.2v - the device powers on for a split second and shuts off again.
They also seem to lose quite a bit of charge when sitting idle.
I'm going back to waiting for the $0.25 per battery deals on normal AAs. Way less headache, they're actually full when you grab a new one, and I also don't have to worry about losing them.
I'm sure for other people it's different, but for me they're just not worth using.
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The biggest problem is that rechargeable AA batteries have a nominal voltage of 1.2v as opposed to 1.5v of a typical battery. For some devices this works fine, but I have simply run into too many instances were they don't work, or only work for a very short period of time. Some devices, for example, require six AAs. That would normally be 9v, but with 6 rechargeables it's only delivering 7.2v - the device powers on for a split second and shuts off again.
They also seem to lose quite a bit of charge when sitting idle.
I'm going back to waiting for the $0.25 per battery deals on normal AAs. Way less headache, they're actually full when you grab a new one, and I also don't have to worry about losing them.
I'm sure for other people it's different, but for me they're just not worth using.
However, if you do have an application for charging more than four batteries at once and value the convenience of a single, USB-C based charger (rather than, say, using a couple of 4-bay chargers) then you might consider the Amazon option a good deal.
Good luck!
Jon
The biggest problem is that rechargeable AA batteries have a nominal voltage of 1.2v as opposed to 1.5v of a typical battery. For some devices this works fine, but I have simply run into too many instances were they don't work, or only work for a very short period of time. Some devices, for example, require six AAs. That would normally be 9v, but with 6 rechargeables it's only delivering 7.2v - the device powers on for a split second and shuts off again.
They also seem to lose quite a bit of charge when sitting idle.
I'm going back to waiting for the $0.25 per battery deals on normal AAs. Way less headache, they're actually full when you grab a new one, and I also don't have to worry about losing them.
I'm sure for other people it's different, but for me they're just not worth using.
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The charger in that example is a 8-battery, single-channel USB-C powered model (you have to supply the USB-C power brick).
Definitely a diffferent beast to the charger on offer here or something like the $7 IKEA model mentioned earlier.
Good luck!
Jon
With most people using batteries in pairs, the limitations of a 2-channel charger shouldn't be significant. However, note that you don't have to pay a million dollars more for a comparable 4-channel model (where each battery is recharged independently).
In fact, IKEA has their model [ikea.com] widely available for $7.
Alternately, Costco has often sold a four-channel charger in starter kits (so with batteries) for under $20.
Good luck!
Jon
The biggest problem is that rechargeable AA batteries have a nominal voltage of 1.2v as opposed to 1.5v of a typical battery. For some devices this works fine, but I have simply run into too many instances were they don't work, or only work for a very short period of time. Some devices, for example, require six AAs. That would normally be 9v, but with 6 rechargeables it's only delivering 7.2v - the device powers on for a split second and shuts off again.
They also seem to lose quite a bit of charge when sitting idle.
I'm going back to waiting for the $0.25 per battery deals on normal AAs. Way less headache, they're actually full when you grab a new one, and I also don't have to worry about losing them.
I'm sure for other people it's different, but for me they're just not worth using.
Going to be diving into 1.5V Lithium cells for the holidays. We'll see ...
The biggest problem is that rechargeable AA batteries have a nominal voltage of 1.2v as opposed to 1.5v of a typical battery. For some devices this works fine, but I have simply run into too many instances were they don't work, or only work for a very short period of time. Some devices, for example, require six AAs. That would normally be 9v, but with 6 rechargeables it's only delivering 7.2v - the device powers on for a split second and shuts off again.
They also seem to lose quite a bit of charge when sitting idle.
I'm going back to waiting for the $0.25 per battery deals on normal AAs. Way less headache, they're actually full when you grab a new one, and I also don't have to worry about losing them.
I'm sure for other people it's different, but for me they're just not worth using.
Good luck!
Jon
I consider 2000-2100mAh the sweet spot for NiMH AAs. Going higher, you sacrifice considerable overall lifespan, as well as some additional self-discharge. All of my 2100mAh (made in China) Rayovac Hybrid/Platinums from 2007-2011 are still limping along. Meanwhile, most of my 2500mAh (made in Japan) Eneloop XXs from 2012 are dead, despite generally having less use.
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I consider 2000-2100mAh the sweet spot for NiMH AAs. Going higher, you sacrifice considerable overall lifespan, as well as some additional self-discharge. All of my 2100mAh (made in China) Rayovac Hybrid/Platinums from 2007-2011 are still limping along. Meanwhile, most of my 2500mAh (made in Japan) Eneloop XXs from 2012 are dead, despite generally having less use.
For NiMHs if you haven't seen it, I consider the gold standard of cycle testing is aacycler.com, though it tends to be perhaps too stressful. It's what makes me skeptical that Ikea LADDAs are basically Eneloops. And you can see a very large variance for even modern LSD batteries in your 2000-2100 mAh sweet spot range.
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