Derek H Posted May 21, 2016 Report Posted May 21, 2016 I'm excited to try some. Here's the Facebook convo.. https://m.facebook.com/photo.php?fbid=10153654388105893&id=613825892&set=gm.10156859846905543&source=57 Quote
fieldmixer Posted May 22, 2016 Report Posted May 22, 2016 Link doesnt work. Interesting! Cut and paste? Sent from my iPhone using Tapatalk Quote
Derek H Posted May 22, 2016 Author Report Posted May 22, 2016 Hmm, the link works for me. You might have to be a member of the freelance sound Facebook group. Quote
Ze Frias Posted May 22, 2016 Report Posted May 22, 2016 37 minutes ago, Derek H said: Hmm, the link works for me. You might have to be a member of the freelance sound Facebook group. It's a "secret" group, so you have to be a member to see the thread. Quote
Johnny Karlsson Posted May 22, 2016 Report Posted May 22, 2016 Note: 2600 mWh = 2166 mAh. So they should be on par with regular Eneloops. Not that exciting to be honest.... Quote
Derek H Posted May 22, 2016 Author Report Posted May 22, 2016 Yes, but they put out a regulated 1.5 volts versus NiMH 1.2. So I'm curious if these end up playing better with high drain devices. There could be other pros/cons. Better build quality perhaps (all my NiMH labels are getting torn up the longer I use them), faster, more consistent charging. Reliability, etc. Anyways, interested in hearing more and thought it would be of interest to the group. Quote
Constantin Posted May 22, 2016 Report Posted May 22, 2016 Regulated? Does that mean they'll always show 1.5V until the die very suddenly? Quote
BWilson Posted May 22, 2016 Report Posted May 22, 2016 That is what I have heard from a distributor. Quote
Ze Frias Posted May 22, 2016 Report Posted May 22, 2016 3 hours ago, Constantin said: Regulated? Does that mean they'll always show 1.5V until the die very suddenly? Correct Quote
RPSharman Posted May 22, 2016 Report Posted May 22, 2016 11 hours ago, Jose Frias said: It's a "secret" group, so you have to be a member to see the thread. Not so secret any more ;-) Quote
Ze Frias Posted May 22, 2016 Report Posted May 22, 2016 9 hours ago, RPSharman said: Not so secret any more ;-) Lol, as if anything on Facebook is a "secret"... Quote
osa Posted May 23, 2016 Report Posted May 23, 2016 15 hours ago, Constantin said: That's not really ideal... Isnt that how regular liths meter hence the dif batt settings on tx and rx meters? Not sure why but i am excited about these. Although i have become extremely fond of te black eneloop pro's -Ken Quote
Constantin Posted May 23, 2016 Report Posted May 23, 2016 Isnt that how regular liths meter hence the dif batt settings on tx and rx meters? Not sure why but i am excited about these. Although i have become extremely fond of te black eneloop pro's -Ken So am I, which is why I have only very limited experience with lithiums. But I do seem to remember that they would deplete normally on the meter. Fo this regulator reason I am not so thrilled about these. Yes, I could use a timer, but that's not very reliable. If there is no kind of warning system, I'd be reluctant to use them Quote
LarryF Posted May 23, 2016 Report Posted May 23, 2016 I believe these are a 3.6 Volt li ion with a switching power supply to provide a standard aa voltage of 1.5 Volts. The biggest advantage is a higher voltage than eneloops. Otherwise, I don't see an advantage. I'm sure they are priced higher with similar power capacity, i.e., battery life in a transmitter. Best, Larry F Quote
LarryF Posted May 23, 2016 Report Posted May 23, 2016 I believe these are a 3.6 Volt li ion with a switching power supply to provide a standard aa voltage of 1.5 Volts. The biggest advantage is a higher voltage than eneloops. Otherwise, I don't see an advantage. I'm sure they are priced higher with similar power capacity, i.e., battery life in a transmitter. Best, Larry F Quote
berniebeaudry Posted May 23, 2016 Report Posted May 23, 2016 Some transmitters get fairly warm to the touch. The rechargeable Lipos are claiming that they don't heat up unlike the Nimh rechargeables. Would this affect the temperature of the outside of the tx at all? Quote
Tom Duffy Posted May 24, 2016 Report Posted May 24, 2016 What's the self-discharge rate? That was a problem with a previous attempt at this style of cell. The Switching Power Supply circuit is always ON ... Quote
chrismedr Posted May 24, 2016 Report Posted May 24, 2016 On 22 May 2016 at 6:17 AM, Johnny Karlsson said: Note: 2600 mWh = 2166 mAh. So they should be on par with regular Eneloops. Not that exciting to be honest.... i thought the same, but 2166mAh @ constant 1.5V or 2000mAh @ variable 1.4-1V (with a mean of about 1.27V) could be about 25%-30% difference. that said, the black envelop come out about the same and are likely less hassle and more reliable, so unless they are a lot cheaper or lighter i don't see much of a point. Quote
Derek H Posted May 24, 2016 Author Report Posted May 24, 2016 I guess we'll just have to wait and see how they compare. Quote
LarryF Posted May 25, 2016 Report Posted May 25, 2016 On May 23, 2016 at 4:49 PM, berniebeaudry said: Some transmitters get fairly warm to the touch. The rechargeable Lipos are claiming that they don't heat up unlike the Nimh rechargeables. Would this affect the temperature of the outside of the tx at all? Hi Bernie, The claims are not true. It's the electronics that get warm, not the NiMh. NiMh generate very little heat during discharge unless it is a dead short. Then things can get exciting. Best, Larry F Quote
John Blankenship Posted May 26, 2016 Report Posted May 26, 2016 Continuing with what Larry said, heat is the result of power consumption. A battery should consume as little power as possible, otherwise it's an inefficient supply. For the most part, the amount of heat generated is a result of the power consumption of the device being powered. In a situation where two different devices each consumes the same amount of power, but they don't feel the same temperature-wise to the touch, it's mostly a function of how each device dissipates the heat, rather than the amount of heat generated. Quote
Derek H Posted May 26, 2016 Author Report Posted May 26, 2016 (Slightly) more info: http://www.ipowerus.com/AA2600/AA2600_1.htm Not sure what to make of that discharge curve chart but it's pretty amusing. Quote
chrismedr Posted May 26, 2016 Report Posted May 26, 2016 7 hours ago, Derek H said: Not sure what to make of that discharge curve chart but it's pretty amusing. yeah, seems to be a bit of "cheating" by plotting the base line at 0.8V, if you'd plot it on 0V it would give a better visual representation. also doubting that the range really would get that much worse, I'd expect any decent wireless system will use a regulated power system which keeps the voltage (and thus range) pretty constant over the life of the battery. on the other hand, charging in 1.5hour is pretty impressive and if the shelf discharge is kept under control and they are light weight and affordable it could be a nice battery. Quote
Derek H Posted May 26, 2016 Author Report Posted May 26, 2016 Yeah who knows what kind of wireless system that chart refers to... I'm sure they'll be as expensive or moreso than the current crop of pro NiMH. Quote
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