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Noisy Cricket
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bibliora Offline
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Post: #31
RE: Noisy Cricket
Thanks for taking care of such a cause for negativity.  I hope it didn't scare the original poster away.
06-06-2016 05:20 PM
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Michael (06-06-2016)
TinWhisker Offline
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Post: #32
RE: Noisy Cricket
Here's the thing about that. It shouldn't scare anyone away, but it does underscore the need for extreme caution and profound understanding of what you're doing. I would imagine that as much as that fellow was confident in his abilities and equipment, it doesn't mean that scenario is safe or will always perform as expected. It is like hooking up too many things to an extension cord. Just because everything seems to be working doesn't mean your house isn't going to burn down in 4 hours...

People use this device and it is fine when you know what you're doing and use the equipment within the boundaries of their limits. This just wasn't the case and I do hope he reconsiders his usage of it.
06-06-2016 06:11 PM
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bibliora Offline
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Post: #33
RE: Noisy Cricket
Well, I can say I learned a great deal reading this thread.  It made a lot of the battery information I've looked at make sense.
06-06-2016 06:26 PM
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Michael Offline
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Post: #34
RE: Noisy Cricket
Wow, I've been busy lately and only just now saw this thread. Glad it's taken care of. 
06-06-2016 07:23 PM
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Fatboy (06-07-2016)
ecignut Offline
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Post: #35
RE: Noisy Cricket
(06-06-2016 05:20 PM)bibliora Wrote:  Thanks for taking care of such a cause for negativity.  I hope it didn't scare the original poster away.
It certainly scared me - I am never going above 15.5W again[Image: smile.gif]. Not without asking Don and the rest of the gang first.[Image: smile.gif]
BTW - nice post earlier TW.
06-06-2016 08:17 PM
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TinWhisker Offline
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Post: #36
RE: Noisy Cricket
Just don't do it with a AAA cell. At least, not an Energizer one.
06-06-2016 08:19 PM
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Don Offline
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Post: #37
RE: Noisy Cricket
You could (just) get 15.5W out of 9 good NiMH AAAs in a 3S3P configuration. Panasonic Eneloop AAs are good for 8 amps. Three of them in series will give you 4.2V fully charged. So that gives you a 1900-2000mAh 4.2V battery. The capacity will be a lot less than 2000mAh at 8A but they are good for a peak of 25-30W and you have to work really, really hard to make an NiMH cell kaboom. It can be done but usually takes applying hundreds of volts at tens of amps till the things become incandescent.

Alkaleaks - it just isn't happening. You'd be lucky to get an amp out of a large alkaline cell.

Up to 50W you're fine with a good IMR 18650. The last 50W regulated box I had which wasn't that efficient had a peak draw of 23A which is high but not intolerable for a good IMR 18650.

In general, if you stick to 40W per cell for good IMR cells, you'll be fine. They will have good cycle life and won't cook themselves under such a regime.

Beyond that, you really are in lithium polymer pack territory.

All this with a big IMO attached.

TVF tested battery info to be found here

http://www.preventsuicideapp.com

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06-06-2016 08:32 PM
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ecignut Offline
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Post: #38
RE: Noisy Cricket
(06-06-2016 08:19 PM)TinWhisker Wrote:  Just don't do it with a AAA cell. At least,  not an Energizer one.
I won't anymore - I have taken them out the mod now and will use them in my toy trains. They were not any good anyway - never could get my Vicious Ant Hybrid to work.[Image: smile.gif]
06-06-2016 08:37 PM
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Michael (06-06-2016)
paulS Offline
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Post: #39
RE: Noisy Cricket
Honestly was trying to be diplomatic with my advice but seeing a dangerous practice being touted kind of spooked me. Unfortunately, now there are some who might be frightened away from using a series mech box. Darwin missed a few people here and there but honestly any box mod is safe when used within the parameters of safety. No box mod - including regulated - are safe in the hands of reckless individuals. I know it is not my place to censor anyone but darn sometimes I get a little hot under the collar when I read posts that are quite frankly dangerously misleading. Glad this was sorted by the mods.

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06-06-2016 08:43 PM
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ecignut Offline
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Post: #40
RE: Noisy Cricket
You did really well paul - it is a good job you were not having one of your naps or you would have missed it all.[Image: smile.gif]
06-06-2016 08:55 PM
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