Reddit mentions of AmazonBasics AA Rechargeable Batteries (2000 mAh), Pre-charged - Pack of 16

For real. I use Amazon Basics rechargables. I've spent a good 5 hours or so using them the last couple of days and they still show 100% in the device screen. I've used the same 4 batteries for the last year...

There's 2 different black ones, [the high capacity ones] (http://www.amazon.com/AmazonBasics-High-Capacity-Rechargeable-Batteries-Pre-charged/dp/B00HZV9TGS/ref=sr_1_3?ie=UTF8&qid=1457121860&sr=8-3&keywords=amazon+basics+rechargeable+aa) are made in Japan, [the others] (http://www.amazon.com/AmazonBasics-AA-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q/ref=sr_1_2?ie=UTF8&qid=1457121860&sr=8-2&keywords=amazon+basics+rechargeable+aa) are not.

get rechargables.

maybe the amazon ones that don't discharge quickly

Check out the Amazon brand rechargables. We finally switched to rechargables this year and I can't believe I was afraid to do it before. I was always afraid they wouldn't last or the slightly different voltage would cause mic issues, but they worked perfectly. No more guilty conscience over the boxes of quarter-used alkalines!

I used these batteries and this charger.

He was given a unit of time... battery stamina ;)

(Recharable) Battery capacity is usually rated with (m)A/H.

You can take that rating, multiply it by the battery power (V) to gain the total W/H rating for the battery.

Examples:

https://www.amazon.de/AmazonBasics-Vorgeladene-Ni-MH-AA-Akkus-Batterienfolie/dp/B007B9NV8Q/

2000 mAH @ 1.2V (NiHM) = 2.4 W/H

2.4WH / 24 W = 6 minutes

2.4 WH / 12 W = 12 minutes

There might be some variation to this due to heat during discharge, inner battery resistance (This determines the maximum amount of energy that can be transfered at once... Or the fastest possible discharge speed) etc... Also there might be the discharge curve that affects this... but ignore that for now ;)

But if everything is "optimal" the calculation should hold true

Amazon basics are rebadged eneloops. There are a few different options available there.

If you can shop at costco they have eneloops, 10 aa/4aaa plus a smart charger that is actually good for about $30. I liked this pack so much I bought about 4 of them recently.

I think the capacity req is 2000MaH. These are pretty popular over at /r/mflb but keep in mind they require a bit of modification to ensure they work properly. /r/mflb has more info if you look around a bit.

You may be slightly screwed, but it's still better than $100 from Yamaha.

The Yamaha takes a power supply with a center pin - STYLE C like this on the power plug, unlike the standard COAXIAL PLUG (STYLE B). And it is CENTER POSITIVE.

Markings on the adapter:

YAMAHA UIB345-1530

HU10217-12029
UNIFIVE TECHNOLOGY

SHENZHEN (02)-66797134

I'm thinking of getting 8 of these and a charger. You could also get 16 of these and keep 8 in the charger. The THR is picky about battery power levels and supposedly craps out ungracefully when the voltage gets too low.

I actually have exactly that setup running a little weather station on my front deck -- but it's a solar panel like this and 4 of these AAs with just a schottky diode running an AVR and an ESP8266 -- and for like $15 in parts, it works great. I've been monitoring the current and voltage and it's been fine so far, though I suspect by summer it will start overcharging a bit since the panel is like C/6 in full sunlight or something. It's shaded in the morning. I guess I'll have to either tilt it north, build a fancier controller, or just accept that my $5 of AAs will die young.

http://i.imgur.com/KHTDRR5.png

https://www.amazon.com/s?k=eneloop+aa&ref=nb_sb_noss_1

Just make sure it's the "AA", the ones who fit Touch and Xbox controllers. (AAA are the smaller ones)

https://www.amazon.com/1x4-Panasonic-Eneloop-Mignon-1900/dp/B00IWS52MI/ref=sr_1_9?keywords=eneloop+aa&qid=1555280910&s=gateway&sr=8-9

https://www.amazon.com/Panasonic-generation-Pre-Charged-Rechargeable-eneloop/dp/B00KQ2L9NY/ref=sr_1_6?keywords=eneloop+aa&qid=1555280924&s=gateway&sr=8-6

Edit: The (white) Amazon Basics AA are also supposed to be very good, likely rebranded Eneloops.
https://www.amazon.com/AmazonBasics-AA-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q/ref=sr_1_14?keywords=eneloop+aa&qid=1555280860&s=gateway&sr=8-14

I have three flashes one is a

Rokinon D980AFZ-OP Digital TTL Power Zoom Flash for Olympus/Panasonic (Black)

http://www.amazon.com/dp/B0029SC9PK/ref=pe_385040_30332190_TE_M3T1_ST1_dp_1

The only two things I do not like about this flash that it does not support high speed sync and if I'm taking a photo vertical I can not point the flash head behind me. I can but the shutter button will be below.


Bolt VS-510OP Wireless TTL Shoe Mount Flash for Olympus & Panasonic Cameras

http://www.bhphotovideo.com/c/product/750838-REG/Bolt_VS_510OP_Wireless_TTL_Shoe.html

I like the bolt flash it supports high speed sync you need to push in the two buttons to enable high speed sync. Also the head will turn back when taking vertical photos and you want to point the flash head back. The one thing I do not like about the this bolt is that it does not take external battery back. But those flashes that do go for a lot more money and those external battery backs can go for $150.00 to $300.00. That's something you might want to get for weddings or something.

For batteries I use Amazing rechargeable batteries

AmazonBasics AA NiMH Precharged Rechargeable Batteries (16-Pack) 2000 mAh

http://www.amazon.com/gp/product/B007B9NV8Q/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

Amazon does sell batteries that hold a longer charge but they cost a little more.

EBL® 808(Latest Version) 8 Bay/Slot AA AAA Ni-MH Ni-Cd Quick Charger Smart Battery Charger for Rechargeable Batteries

http://www.amazon.com/gp/product/B00EB7812C/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

Dial AA Battery Storage Box

http://www.amazon.com/gp/product/B003US4L4K/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

People say Sanyo Panasonic rechargeable batteries are the best. Panasonic bought Sanyo so Sanyo ones are hard to find. Panasonic is just relabeling everything Sanyo made with Panasonic now .


Panasonic eneloop pro AA Rechargeable Ni-MH Batteries (2550 mAh, Pack of 8)

http://www.bhphotovideo.com/c/product/1047695-REG/panasonic_bk_3hcca8ba_eneloop_xx_aa_rechargeable.html

Watch this video about bouncing light.

Bouncing the light - how I get directional light from my hot shoe flash

https://www.youtube.com/watch?v=KzCHJMlt3Nw

This is the flash diffuser set I bought from Ebay.

Universal Cloud Lambency Flash Diffuser + Cover Set for Flash

http://www.ebay.com/itm/Universal-Cloud-Lambency-Flash-Diffuser-Cover-Set-for-Flash-/281114680556?pt=Camera_Flash_Accessories&hash=item4173bd9cec

The big white dome is great but its a little clumsy. The clear one I do not like so much I like the cloudy dome one the most. Also I like the

Flash Diffuser Universal For All Brand Canon Nikon Sony Olympus Pentax Flash

http://www.ebay.com/itm/Flash-Diffuser-Universal-For-All-Brand-Canon-Nikon-Sony-Olympus-Pentax-Flash-/261213073983?pt=Camera_Flash_Accessories&hash=item3cd183323f

You will get one of these little diffusers in first ebay link i gave you. But I like having these in my camera bag because is something happens I have a few back ups. Its almost as good as the big cloudy diffuser.

Also watch these two videos.

NEW VIDEO - A Better Bounce Card 3.0 Technology

https://www.youtube.com/watch?v=99P0rv3XLec

A Better Bounce Card No-Flash-In-Eyes

https://www.youtube.com/watch?v=qkfRocWJFcM

When you put your diffuser on you turn the head so you can take vertical photos as well. You really won't need a flash bracket like in the old days. They are still good for bouncing the light off a wall if you are taking a vertical or something. But for the most part I do not think you will need one.

Holy shit those are expensive. I've been using these for the last year and they rank up there with anything I've ever used. http://www.amazon.com/AmazonBasics-Precharged-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q/ref=sr_1_1?ie=UTF8&qid=1415148820&sr=8-1&keywords=aa+rechargeable+batteries

Eneloop fam

Or these ones: https://www.amazon.com/AmazonBasics-AA-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q

Has anyone tried the Amazon brand rechargable AA batteries with speedlites? They seem quite a bit cheaper than Eneloops but I'm wondering if they're any good for flash.

Can't you just use rechargeable NiMh batteries? I use those and even after ~100 packs they are still going strong.
https://www.amazon.com/AmazonBasics-AA-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q

> Do the nicads drive the brush as hard?

The original battery in the brushes is a nicad unless you're talking about one specifically advertising a lithium battery. Lithium powered brushes are much more expensive brushes (Phillips makes some but most other companies don't bother).

> The store-bought with regular batteries just are not very powerful in my experience and the power slacks off fast.

Even Duracells are actually pretty bad for high drain devices unless you're buying something like their lithium line (absurdly expensive). They're only 1500 mAH compared to the 1800-2200 of good (not usually sold in local stores) nicad rechargeables and Alkalines drop in voltage gradually over their lifespan. The latter causes what you describe. NIMH batteries are much more steady and drop off suddenly near the end of their life.

Use something like http://www.amazon.com/AmazonBasics-Precharged-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q instead for everything except extremely low drain devices like remotes. Those are 2,000 mah NIMH batteries and each of them actually provide more total energy than the sub-C ones in most rechargeable brushes in spite of the smaller size. A pair of them is actually a lot more juice than the integrated batteries.

> What is the optimal charge time for such things?

Charge time, which is what you can control, is dependent on the charge rate, which is determined by the manufacturer and how long you use the brush. The ideal charge time, however, is barely enough to completely refill the battery after an average brushing. But you can't possibly do worse than what the manufacturer intended, which is overcharge it as much as physically possible. That timer gadget you have almost certainly costs more than replacement toothbrush batteries, though, so it's not really worth it unless you have a lot of other battery-powered bathroom devices to attach to it or don't feel like you could pull off a battery replacement.

> Oh, and previously the brush was used by two people, which may also have abbreviated its life?

It actually should have increased its battery life. It would be overcharged for fewer hours per day and the extra drain would have caused it to develop its memory (actually voltage depression, not what people think of as memory) at a slower rate.

> I see the link is for the rotadent.

They're all the same general construction. A motor, on/off switch, and a battery crammed into a plastic tube and attached to a driveshaft that attaches to the brush head. The only significant difference might be that some other brands could use a pair of AA size nicads instead of a sub-C nicad.



I just realized I have researched waaay too much about rechargeable batteries over the years.

This is what I have. The Amazon Basics are almost as good as the Eneloops but cheaper.

According to the reviews, the white label ones are the eneloops.

19.2 is the nominal voltage of your battery pack. Charge voltage should be aprox 23,2 or most likely 24V could be used without making much of a difference.. NiMH ideal charging can be tricky..

You could possibly replace those with Lithium chamistry but you'd need a whole new battery charger and a BMS for protection and balancing.

16 new AA NiMH like these are your best way to go I am afraid as conversion to Lithium would be better in the long run

Sadly I do not own one, but Here are the batteries I am using.

I find that to be a huge exaggeration, but if it's an issue for you I highly recommend these:

https://www.amazon.com/AmazonBasics-AA-Rechargeable-Batteries-16-Pack/dp/B007B9NV8Q/

Or these higher end ones for things that really draw more power like an XBox controller:

https://www.amazon.com/Panasonic-BK-3MCCA16FA-eneloop-Pre-Charged-Rechargeable/dp/B00JHKSN4O

AmazonBasics AA NiMH Rechargeable Batteries are cheaper and virtually the same exact battery (maybe even better).

That being said, the only name brand I buy is Scott toilet paper - it's the only brand that's guaranteed safe for septic systems.