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HEXFLY HX-A3 LiPo BATTERY CHARGER

Hexfly HX-A3 LiPo Battery Charger, retail $19.99 (www.redcatracing.com...)
Manufactured by Redcat Racing (www.redcatracing.com)
Last updated 04-28-20

The Hexfly HX-A3 LiPo Battery Charger (simply called a "charger" on the remainder of this web page) is exactly what you think it is: a battery charger that can handle many of the LiPo (Lithium Polymer) batteries used by R/C drones, helicopters, airplanes, and ground vehicles.

It is a balance charger, meaning that it can PROPERLY charge multiple-cell LiPo batteries without concern that one cell in the battery might receive more juice than the other(s).

It has female receptacles that fit (what I believe are) Deans connectors for 2S (2-cell) and 3S (3-cell) LiPo batteries
I'm not all that knowledgeable when it comes to battery connector names, so I could have very well royally screwed the pooch here when I said that these receptacles fit Deans connectors.

It operates from 110 to 130VAC and plugs into any standard (in north America anyway) 2- or 3-slot household AC receptacle.

Size of product w/hand to show scale

SIZE

To use the charger, plug the female end of the furnished power cord into the shielded male jack for it on one end of the charger, and plug the male end of the cord into any handy 110 to 130 volts AC 60Hz household receptacle (or, "wall outlet" or even, "wall socket" if you prefer to be incorrect).

Plug your dead or weak 2S or 3S battery into one of the white shielded male receptacles on the other end of the charger's body. The 2S connector is the smaller of the two; the 3S connector is the larger one.
The connectors are keyed to fit only one way; if the plug on the battery doesn't slide in relatively easily (you may jiggle it slightly if necessary), flip it over (turn it 180°) and try it again.

The status LEDs on the upper surface of the charger will now turn red: two of them for a 2S battery, and all three of them for a 3S battery.

When these LEDs switch from red to yellow-green, the charge cycle is complete.

Unplug the battery and then unplug the charger itself now, plug it into the device it came out of (drone, heli, plane, ground vehicle, etc.) and go have some fun!

Approximate charge times (as shown on the underside of the charger) are:
2,000-3,000mAh: 130 to 200 minutes
3,000-4,000mAh: 200 to 265 minutes
4,000-5,000mAh: 265 to 330 minutes

This charger is line-powered, so I do not have to tell you which part to remove, dash to the floor, stomp on with old or used bowling shoes and then rather emphatically tell you not to.

So all you need to do to give it power is plug it up (this would be how you say, "plug it in" in the UK).

This is a battery charger, and not a flashlight meant to be carried around, thrashed, trashed, and abused - so I won't try to drown it in the toliet tank, bash it against a steel rod or against a concrete porch, let my mother's big dog's ghost or my sister's kitty cats piddle (uranate) on it, run over it with a 450lb Celebrity motorised wheelchair, stomp on it, use a small or medium ball peen hammer in order to bash it open to check it for candiosity, fire it from the cannoñata, drop it down the top of Mt. Erupto (I guess I've been watching the TV program "Viva Piñata" too much again

- candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piñata Central {aka. "Party Central"}), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoñata (also located at Piñata Central) is only used to shoot piñatas to piñata parties away from picturesque Piñata Island, and Mt. Erupto is an active volcano on Piñata Island), send it to the Daystrom Institute for additional analysis, or perform other indecencies on it that a flashlight might have to have performed on it. So this section of the web page will be ***SIGNIFICANTLY*** more bare than this section of the web page on a page about a flashlight.

In fact, those three photos and four spectrographic analyses on this web page will very likely be "it".

Photograph of the unit while it was charging a 3S (3-cell) drone battery to show the red LEDs.

Spectrographic analysis of the yellow-green, "Charge cycle complete" LEDs in this charger.

Spectrographic analysis of the yellow-green, "Charge cycle complete" LEDs in this charger; spectrometer's response narrowed to a band between 560nm and 580nm to pinpoint emission peak wavelength, which is 570.610nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at hexfly-g.txt

Spectrographic analysis of the red, "Charge cycle in progress" LEDs in this charger.

Spectrographic analysis of the red, "Charge cycle in progress" LEDs in this charger; spectrometer's response narrowed to a band between 620nm and 640nm to pinpoint emission peak wavelength, which is 632.320nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at hexfly-r.txt

USB2000 Spectrometer graciously donated by P.L.

TEST NOTES:
Test unit was purchased on Ebay sometime in late-2019.

UPDATE: 00-00-00

PROS:
Properly (balance-) charges your LiPo batteries
Decent charging speed
Small footprint
Line-powered; no batteries to buy EVER (some battery chargers actually use disposable cells instead of mains power!)

NEUTRAL:

CONS:
None that I have yet to find

Redcat Racing

LiPo balance battery charger

Bicolor red/yellow-green LED

N/A

Plastic

N/A

N/A (line-powered)

Unknown/unable to measure

¡¡¡HUSOOS CRISTO USANDO UN ANDADOR NO!!!

110VAC power cord

90mm L x 60mm W x 35mm T

94g (3.320 oz.)

Unknown

Hexfly HX-A3 LiPo Battery Charger * www.redcatracing.com...

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