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The following page was printed from RemoteCentral.com:
Topic: | MX-900 Eating Batteries This thread has 23 replies. Displaying posts 16 through 24. |
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Post 16 made on Monday August 20, 2007 at 22:27 |
Herman Trivilino Long Time Member |
Joined: Posts: | February 2007 292 |
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On August 18, 2007 at 22:51, GregoriusM said...
Why is it that rechargeable batteries cannot be made with the proper voltage rating? It's the chemistry. If you've ever taken careful measurements of your car battery's voltage, you'll find it's 12.62 volts (not 12 volts). There are actually six cells forming that battery, and each cell has a voltage of about 2.1 volts. It's the chemistry (lead acid) that determines the voltage. A Nickel based cell has a voltage of about 1.2 volts. Alkaline is about 1.5 volts. The old cells we used when I was a kid are now marketed as "heavy duty". They're less expensive than alkalines but are a waste of money. The chemistry there is carbon-zinc, and they are also 1.5 volts.
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Origin: Big Bang |
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Post 17 made on Monday August 20, 2007 at 22:32 |
Herman Trivilino Long Time Member |
Joined: Posts: | February 2007 292 |
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On August 20, 2007 at 14:01, Grimdeath said...
Original poster: most likely your rechargeables are bad as someone else said. I use the 15-min high capacity rechargeables and they only last dozens of recharges, not thousands as they claim. That's because you're charging them too fast. Get a charger that regulates the current and you might get more cycles. I don't know if you could get thousands, though. ;-)
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Origin: Big Bang |
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Post 18 made on Sunday August 26, 2007 at 10:39 |
Grimdeath Long Time Member |
Joined: Posts: | January 2004 98 |
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On August 20, 2007 at 22:32, Herman Trivilino said...
That's because you're charging them too fast. Get a charger that regulates the current and you might get more cycles. I don't know if you could get thousands, though. ;-) Yes, I know... that's the price you pay for not wanting to wait a night for a charge :) BTW: I've used both the Rayovac 15-min IC-3 charger/rechargables and the Duracell 15-min charger/rechargables - the Rayovac's didn't last long; I'm still waiting to see how long the Duracell's last.
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Post 19 made on Sunday August 26, 2007 at 20:25 |
Herman Trivilino Long Time Member |
Joined: Posts: | February 2007 292 |
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On August 26, 2007 at 10:39, Grimdeath said...
Yes, I know... that's the price you pay for not wanting to wait a night for a charge :) BTW: I've used both the Rayovac 15-min IC-3 charger/rechargables and the Duracell 15-min charger/rechargables - the Rayovac's didn't last long; I'm still waiting to see how long the Duracell's last. If you absolutely insist on charging them that fast, then you should make sure they are dead, or nearly dead, before charging them. I don't know what IC-3 means, but if the batteries are nickel-based then the only way the Duracell might be an improvement is if it has a better way of sensing when the batteries are charged and then shutting down the current. If the batteries are getting warm when you charge them, then chances are they are being over-charged.
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Origin: Big Bang |
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Post 20 made on Monday August 27, 2007 at 13:06 |
Grimdeath Long Time Member |
Joined: Posts: | January 2004 98 |
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IC-3 was Rayovac's product line name for their 15-min NiMh cells that featured an integrated IC. The Duracell cells appear to be standard NiMh cells. Both charges feature cooling fans to cool the cells as they charge, and, as you can imagine, they monitor the current and temperature of the cells.
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Post 21 made on Friday August 31, 2007 at 00:48 |
Herman Trivilino Long Time Member |
Joined: Posts: | February 2007 292 |
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On August 27, 2007 at 13:06, Grimdeath said...
IC-3 was Rayovac's product line name for their 15-min NiMh cells that featured an integrated IC. The Duracell cells appear to be standard NiMh cells. Both charges feature cooling fans to cool the cells as they charge, and, as you can imagine, they monitor the current and temperature of the cells. There is supposed to be a new type of Lithium Ion battery coming out that charges in just a few minutes and is powerful enough to run things like drills and saws. I heard about it last year, but haven't seen it appear on the shelves yet.
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Origin: Big Bang |
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Post 22 made on Friday August 31, 2007 at 05:15 |
GregoriusM RC Consultant |
Joined: Posts: | December 1999 9,807 |
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I'm looking forward to that, if it is half-decently priced. Do you have any links to it that we can see?
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When ignorance is bliss, ‘tis folly to be wise. |
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Post 23 made on Sunday September 2, 2007 at 02:04 |
Herman Trivilino Long Time Member |
Joined: Posts: | February 2007 292 |
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On August 31, 2007 at 05:15, GregoriusM said...
I'm looking forward to that, if it is half-decently priced. Do you have any links to it that we can see? I think it was featured in an article in Popular Mechanics in one of last year's issues. I can't find anything else on it, so I'm guessing it hasn't made it out of R&D yet, if it ever will!
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Origin: Big Bang |
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Post 24 made on Saturday April 6, 2013 at 17:09 |
poolpleaser Lurking Member |
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Hi, You are right about new batteries being hit/miss! I found this blog because my MX900 displayed low battery (after about 1 year). I put 4 batteries in and nothing. Put a few more in and nothing. That's when I found your post. Sure enough of the 7 Rayovac alkaline batteries, 4 tested 1.5 volts, 2 registered about .6 volts, and the other registered zero!
I know my voltmeter works because when I put the good ones in, the remote fired up! Thank you!
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Pool |
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