Amazon Deal Alerts & Discussion Thread

Yup, code still good on tablet.

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I have similar remotes, but mine don’t take A23 batteries.
Mine take lithium button cells, which don’t typically leak.
A23 batteries are much more likely to leak. :slightly_smiling_face:

My old car’s alarm used a 12V A23 in the fob. Rat Shaq sold the C-Zn cell for 89¢ and the alkaleak version for 3bux or so. Good God, I think I actually remember it as 2.99 then 3.29.

The C-Zn cheapie used to last me 4-5yrs if not more as a daily driver, so a few chirps per day.

Then Rat Shaq discontinued it and the only one available was the alkaleak. Had to replace those f’ers yearly.

Don’t recall either one ever leaking, but paying 3×-4× the price for a battery that lasts only ¼ as long was ridiculous.

So… if youse ever need an A23, try for the old-timey C-Zn version if you can get 'em.

Power outrage alarm, 3bux.

(one-time coupon, gotta go through vipon)




Retro glass 2700K “60W” blubs, 8bux.

https://www.amazon.com/dp/B0DHCC93FY/

(clicky code + coupon on the page, no vipon needed)

I got these blubs before, pretty nice, passes the fan test with no perceptible flicker.

$12.00 =12 AA LSD batteries
Clip the 16% coupon on the product page and apply coupon code “30EHQ9C6” for a savings of $10.
Granicell AA Rechargeable Batteries 2800 mAh High Capacity 1300 Cycle,1.2V NiMH Low Self Discharge AA Battery,12 Pack

Couple of pointless lights from Vipon:
Cube lamp projector $11 with code XOCSPDI9
16" lighted play ball <$7 with code 50PR68MX

Artman CR123A Rechargeable Batteries 8 Pack, 3.7V 123a Lithium Batteries with Charger $25+

18,400 mAh Fast Charging Powerbank

Power Add Pro PD Booster 130

This is down to $19 after a $6 on-page coupon. I bought it earlier this week as I have a new laptop needing 100w charging and this thing works fine. Seems well built and a great deal for the capability and capacity.

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Soooo…badbox?

Received the Granicell 2800 mAh NiMH AA batteries from AmazonUS yesterday.

The average as delivered battery voltages were 1.31 volts when measured with a digital multimeter.

At a charging rate of 800 mA the as delivered batteries took an average additional charge of 305 mAh using an Opus BT-C2400 analyzing charger.

Battery voltages averaged 1.45 volts at termination of charging and settled to an average of 1.38 volts after an overnight rest when measured with a digital multimeter.

Discharging these charged batteries to 0.9 volts at a discharge rate of 400 mA yielded an average capacity of 1995 mAh as measured by the Opus charger.

At a charging rate of 800 mA the discharged batteries took an average full charge of 2360 mAh using the Opus charger.

The internal resistance of both charged and discharged batteries averaged 59 mOhm as measured using the “Quick Test” mode of the Opus charger.

I use Eneloop or Ikea Ladda NiMH batteries made in Japan in expensive or important devices.
1900 mAh Ikea Ladda AA cost me ~$2 each.
2450 mAh Ikea Ladda AA cost me ~$2.5 each.
2000 mAh Eneloop AA cost me ~$3 each.
2600 mAh Eneloop AA Pro cost me ~$4.5 each.

Hopefully these Granicell NiMH AA batteries made in China which cost $1 each will not leak and also last through many recharges while maintaining close to their original capacity with a low self-discharge rate, but I have my doubts and only time will tell.

I will be torture testing these batteries in my wife’s decorative string light arrangements and fake candles which have batteries configured in series with no low voltage protection and when the lights stop working (besides having very low voltages) sometimes one of the batteries in series has also temporarily reversed its voltage. After recharging and reusing the reversed-voltage battery it effectively becomes a “pseudo fuse” and helps prevent the other batteries in series from becoming over-discharged. After many recharges, I discard the “pseudo fuse battery” when it can no longer receive an acceptable charge and then I regroup each remaining old used battery into a set with some new batteries where the old used battery now functions as the “pseudo fuse battery” which allows me to obtain the maximum usage from my batteries in these non-essential devices.

2 Thanks

Not even close to specs, and worse than I expected. Be interesting to see how these fare over time. I’ve have had lackluster experiences with very high (claimed) capacity NiMh. They go to hell in a couple years. IR goes way up and termination becomes problematic.
At that price they are almost disposable. You have an appropriate use case for them.

My plan is to use them in my solar path lights.

How do you think they will do with very long sun light and that sort of cycling, a lot of my old lsd batteries that lose their capacity seem to like it and usually continue for a couple of years of good all night lighting.

I have used my old ‘beater’ batteries for the same thing. I’ve moved away from NiMh solar lights. In the Pacific NW they just don’t cut it. Lithium lights with better solar cells are only good for about 4 months if not motion activated.

I actually tried out an alkaline once for a whole summer. I was SURE it would leak and ruin the light. It did not and worked the whole season. Fluke? Go figure.

Any cheepie cells, I go into it with that mindset, that they’re rechargeable, but disposable.

ANY doodad that uses cells in series, I figure for sure at least 1 cell will be ruined, as they’re nowhere near matched cells. Got some cat toys that use 3 AAs, like those things that spin “butterflies” around in a circle. One has a soft switch, goes dormant if not poked in a while, then turns off after something like 4hrs of non-use. Another with a hard on/off switch that’ll happily keep spinning for as long as there’s enough juice to work the motor. Guaranteed at least 1 cell will be down to 0 if not reversed by the time it even slows down enough to be noticeable, let alone turns off completely.

Those PKcells I got a long while ago are holding up remarkably well. And even if 1/more cells get ruined, yeah, I can swap out that cell with another, then keep going.

I wonder if those Li cells with onboard 1.5V regulator would be better, as guaranteed the runt of the litter would shut down at low voltage, but dunno if they handle being pushed with reverse voltage too well, if at all.

Point being, I hate anything (design, not necessarily the device itself) with cells in series. Without a smart BMS and cutoff mechanism, almost guaranteed a cell in the string is gonna get ruined. And no cat toy is gonna be designed with an onboard BMS and a tap at each cell-to-cell connection to shut down safely as to not ruin a cell.

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Very nice charger … Thanks for the heads-up … :beers:

Got the tablet in. Woke it up and turned off the info sharing I could find.
Feels nice. The power button is easy to push – important for those limited hand strength.
The low res screen is just fine for my use and it’s plenty bright for indoor use.
I’m easy. Mostly going to run the Kindle app while I’m getting infusions at the hospital.
The Paper-white is getting a bit small for my old eyes.

It plays youtube vids ok.
The audio is not all that good compared to my ancient Samsung 13” or my old ipad 6.
But once again it’s good enough for my limited use.

Paired a BT mouse no problems. But mouse activity won’t wake it up or I’ve missed the setting.

Me and Android are sort of getting along. I find the version on my way old Samsung easier to deal with.

The only remaining question is battery life. Will it last through a 7hr. Stay?
I’ll find out next week.

Oh, and not much bloat-ware. Hard to tell what’s needed.
Storage, 18Gb for the system and 4Gb in apps.
If you need to store a bunch of crap the microSD will be needed.

For 40 bucks I’d buy it again in a heartbeat. At the $80 full price I think I’d add a few more$$ and go for a low end ipad.
All the Best, Jeff

5 Thanks

Granicell Update

My Powerex 9000 only measures an average of 2050 mah ( 1000 charge / 1000 discharge)

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Also meant to mention that Developer Mode isn’t hidden like on some devices.
All the Best, Jeff

FlexSolar 60W Portable Solar Panels QC3.0 USB-A USB-C DC5521 8mm Output Foldable IP65 $35+ with 20% discount on page.

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Now $89 with a 35% discount available ledhead! Sorry to have missed that one.

Yep… comes to $62.58 now for me :angry: