Air Machinegun Forum
General Air Machinegun Discussion Category => Building Projects => Topic started by: Parellax on March 17, 2016, 12:00:21 AM
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Just in time when none of the toys my kids play with use AA, or AAA batteries. One of my customers told me about these a couple of days ago. Still very cool. Hey DUBB. How would you feel about mixing these in a Drozd?
http://www.ebay.com/itm/4pcs-KENTLI-1-5v-2800mWh-rechargeable-Lithium-AA-PH5-battery-with-USB-Charger-/262237211188?hash=item3d0e8e4a34:g:HJAAAOSwaA5WlSWw (http://www.ebay.com/itm/4pcs-KENTLI-1-5v-2800mWh-rechargeable-Lithium-AA-PH5-battery-with-USB-Charger-/262237211188?hash=item3d0e8e4a34:g:HJAAAOSwaA5WlSWw)
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Expensive.
Those batteries are mWh as opposed to mAh. To me that is just confusing advertising to make them seem like they have a lot more "capacity" than most would think, IMO.
A mWh = voltage x mAh, so if you take that battery's 2800 mWh and divide it by it's voltage (1.5v) you get a battery that is close to 1866 mAh.
Still though, the Trustifre 15650's I used to use were only 900mAh. Those batteries are twice that. But, the overload protection may be an issue.
I found this info on them:
https://ripitapart.wordpress.com/2015/06/17/performance-analysisreview-of-kentli-ph5-li-ion-1-5v-aa-battery/ (https://ripitapart.wordpress.com/2015/06/17/performance-analysisreview-of-kentli-ph5-li-ion-1-5v-aa-battery/)
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I was searching for 18650 batteries this morning and came across this battery from "GTF" which shows it as a 9900 mAh capacity.
????? How can this possibly be???? For a lithium ion battery??? Did I miss some major break though in Li Ion batteries?
http://www.ebay.com/itm/2pcs-3-7V-18650-9900mah-Li-ion-Rechargeable-Battery-For-LED-Flashlight-Torch-UF/401055013499?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Debe0550986d04fc1bb2497364270ee35%26pid%3D100338%26rk%3D17%26rkt%3D24%26mehot%3Dpp%26sd%3D281928358456 (http://www.ebay.com/itm/2pcs-3-7V-18650-9900mah-Li-ion-Rechargeable-Battery-For-LED-Flashlight-Torch-UF/401055013499?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Debe0550986d04fc1bb2497364270ee35%26pid%3D100338%26rk%3D17%26rkt%3D24%26mehot%3Dpp%26sd%3D281928358456)
Can't possibly be that high a capacity. I have Li Ion battery packs that are the size of a small brick that have less capacity than that. Thought 18650's high end capacity was about 3600 mAh.......Hmmmn. So I did some quick research.
Sure enough, they are from china and are falsely advertised.
If you are getting 18650 batteries for your Blackbird or other projects, beware of anything supposedly rated above 3600 mAh and even then, do some research on them to see if they are legit. There are also some false 5000 mAh and 6800 mAh batteries as well.
---Cam
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I was searching for 18650 batteries this morning and came across this battery from "GTF" which shows it as a 9900 mAh capacity.
????? How can this possibly be???? For a lithium ion battery??? Did I miss some major break though in Li Ion batteries?
http://www.ebay.com/itm/2pcs-3-7V-18650-9900mah-Li-ion-Rechargeable-Battery-For-LED-Flashlight-Torch-UF/401055013499?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Debe0550986d04fc1bb2497364270ee35%26pid%3D100338%26rk%3D17%26rkt%3D24%26mehot%3Dpp%26sd%3D281928358456 (http://www.ebay.com/itm/2pcs-3-7V-18650-9900mah-Li-ion-Rechargeable-Battery-For-LED-Flashlight-Torch-UF/401055013499?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Debe0550986d04fc1bb2497364270ee35%26pid%3D100338%26rk%3D17%26rkt%3D24%26mehot%3Dpp%26sd%3D281928358456)
Can't possibly be that high a capacity. I have Li Ion battery packs that are the size of a small brick that have less capacity than that. Thought 18650's high end capacity was about 3600 mAh.......Hmmmn. So I did some quick research.
Sure enough, they are from china and are falsely advertised.
If you are getting 18650 batteries for your Blackbird or other projects, beware of anything supposedly rated above 3600 mAh and even then, do some research on them to see if they are legit. There are also some false 5000 mAh and 6800 mAh batteries as well.
---Cam
I just bought one of these, to go with a new flashlight, so I'll put their claim to the test, the next time I charge it, which will be the first since I first charged it when I bought it. But it's taking it's time in the flashlight, I'll give it that, it's been running on the first charge for a couple of months, now. When it finally goes dead, I'll make a note of what it takes from my digital charger.
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No Cam. If you go to the data sheet the company provides it specifically states there is 14% pure unicorn urine in the composition. That's what makes it work so good. I automatically assumed it was pure love, but I was wrong.
Be very careful with these batteries. The Ebay add warns of possible "cysts".
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Someone wanted to see a demonstration today, and when I tried to find a gun with six 14500's I couldn't. Turns out my dumbass left my set in the last one I modded for a buddy. Doe! I can't find that specific brand from the same seller any more so I am giving these a shot. They have the exact same specs, and are from the same seller for the same price. I will let ya'll know.
In case anyone is wondering... Yes, I did hit them up for a sponsorship. No reply.
http://www.ebay.com/itm/271696173465?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.com/itm/271696173465?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT)