Top products from r/batteries
We found 33 product mentions on r/batteries. We ranked the 146 resulting products by number of redditors who mentioned them. Here are the top 20.
1. Panasonic K-KJ17MCA4BA Advanced Individual Cell Battery Charger Pack with 4 AA eneloop 2100 Cycle Rechargeable Batteries
Sentiment score: 6
Number of reviews: 3
Recharge up to 2100 timesMaintain up to 70% of their charge after 10 years (when not it use)2000mAh type, 1900mAh min, Ni-MH pre-charged rechargeable battery4 position charger with advanced, individual battery charging, AA and AAA cellsBattery detection technology - automatically shuts off when char...
2. AmazonBasics AAA Rechargeable Batteries (800 mAh), Pre-charged - Pack of 8
Sentiment score: 1
Number of reviews: 2
One 8-pack of pre-charged AAA rechargeable batteries (800 mAh), ideal for digital cameras, remote controls, toys, and moreLong battery life; extremely gradual self-discharge; maintains 80% capacity for 24 monthsComes pre-charged and ready to use; can be recharged 1000 times with minimal power lossSh...
3. Energizer AA Lithium Batteries, World's Longest Lasting Double A Battery, Ultimate Lithium (12 Battery Count)
Sentiment score: 2
Number of reviews: 2
12 Pack of Energizer Ultimate Lithium [AA] BatteriesEnergizer Ultimate Lithium is the No.1 Longest Lasting AA BatteryLeak proof construction protects the devices you love (based on standard use)Powers your most critical devices ideal for your smart home devices, outdoor surveillance systems, digital...
4. Gikfun 2S Lithium Input Ouput Protection Board PCB 7.4V 3A for Arduino (Pack of 2pcs) EK1785
Sentiment score: 1
Number of reviews: 2
2S Li-ion Lithium 18650 Battery Input Ouput Protection Board PCB 7.4V 3AWorking Current: 3APack of 2pcs
5. DSLRKIT 3AA(LR6) to D Size Parallel Battery Convertor Adapter Holder (Pack of 4)
Sentiment score: 1
Number of reviews: 2
Convert any AA battery to a D batteryOption to use 1 AA,2 AA or use 3 AA for more capacityThis set includes 4PCS adapters
6. TalentCell Rechargeable 12V 3000mAh Lithium ion Battery Pack for LED Strip, CCTV Camera and More, DC 12V/5V USB Dual Output External Battery Power Bank with Charger, Black
Sentiment score: 3
Number of reviews: 2
Rechargeable DC12V and 5V USB Double Output Lithium ion battery pack. Small size, 3000mAh high capacity, easy to carry.12V battery compatible with most LED strip light products, CCTV Camera, IP Camera, LED Panel, Amplifier, Modem, Car DVR, Speaker, Spectra S2 breast pump, and 5V devices, mobile phon...
7. Battery to Electric AA Converter - Convert Any AA Battery Clock/Device to Electric - NiMH Battery Will Keep Your Clock/Device Running in Case of Power Failure
Sentiment score: 1
Number of reviews: 2
★ ADAPTS BATTERY OPERATED CLOCK/DEVICE FOR ELECTRIC USE. Just replace your AA battery with the AA-size NiMH battery on the adapter. Plug it in and you're running on electric power! It's that simple.★ PROVIDES UNINTERRUPTED BATTERY BACKUP - If your power goes out, the converter will automatically...
8. VANGOLD Frameless DIY Wall Clock, 2-Year Warranty 3D Mirror Wall Clock Large Mute Wall Stickers for Living Room Bedroom Home Decorations
Sentiment score: 0
Number of reviews: 2
Warranty - Please contact us if any problems, and you can get a free replacement without a return.Modern Design - Large Size for Wall Decoration, acrylic mirror surface let your room get a stylish and modern atmosphere.Enjoy the Fun of DIY: Create your own unique wall clock---Combine the clock with ...
9. Energizer L91SBP-4 AA Batteries Ultimate Lithium (4 Count), (Pack of 1)
Sentiment score: 0
Number of reviews: 1
4-pack of Energizer Ultimate Lithium AA batteriesEnergizer Ultimate Lithium is the #1 Longest-Lasting AA BatteryLeak-proof construction protects the devices you love (based on standard use)Powers your most critical devices—ideal for your smart home devices, outdoor surveillance systems, digital ca...
10. FSP Group Portable Power Pack Lithium Ion Li-Ion Battery Energy Storage System (EMERGY 1000)
Sentiment score: 0
Number of reviews: 1
Lightweight. The weight is only 1/2 to 1/3 of Lead-acid batteries. Drag and go! Moving it like suitcases. With the easy pull handle and wheels. There is no need to carry your battery around with both hands anymore!Rated Energies 900Wh. Outstanding conversion efficiency (90%)It can be used as a stand...
11. Energizer Ultimate Lithium AA Size Batteries - 20 Pack
Sentiment score: 0
Number of reviews: 1
Preforms in Extreme Temperatures (-40 to 140F)Lasts 7 Hours Longer in Handheld GPS DevicesWorlds's Longest Lasting AA BatteriesLasts up to 5x longer than alkaline batteries in digital cameras and up to 3x longer in other cameras and flash applicationsLasts up to 5x longer than alkaline batteries in ...
12. Organizer 2pcs 4S 30A 14.8V Li-ion Lithium 18650 Battery BMS Packs PCB Protection Board Balance Integrated Circuits
Sentiment score: 0
Number of reviews: 1
1.Over charge protection, over discharge protection function, short circuit protection function, over current protection function, balance.2.Charging port of the plate and the discharge port is the same, both positive and B- connecting3.battery"-", P- charging port and port on the negative electrode...
13. Tenergy Universal RC Battery Charger for NiMH/NiCd 6V-12V Battery Packs, Fast Charger for RC Car, Airsoft Batteries, Compatible with Standard Size Tamiya/Mini Tamiya/Alligator Clips Connectors 01025
Sentiment score: 1
Number of reviews: 1
FAST CHARGE - NiCd/NiMH battery pack charger that provides 1Amp or 2Amp options. Quickly charge your battery packs; 1Amp is recommended for 1000-1800mAh packs, and 2Amp is recommended for any pack over 2000mAh.UNIVERSAL SMART CHARGER - Charges battery packs based on automatic voltage detection. Char...
14. Powerex MH-C9000 WizardOne Charger-Analyzer for 4 AA or AAA NiMH Batteries
Sentiment score: 1
Number of reviews: 1
Four independent slots for AA or AAA NiMH or NiCd batteriesLarge backlit LCDDigitally displays battery capacity, voltage, current and timeSpecial forming charge and cycling mode30 selectable charging and discharging speed
15. Duracell DL2032B2PK Lithium Medical Battery, 3V, 2/Pk
Sentiment score: 0
Number of reviews: 1
Sold as 2/PK.Long-lasting power.Up to a 3-year guarantee in storage with Duralock Power Preserve Technology.Great for watches, calculators and medical devices.
16. Optima Batteries 8073-167 D51R YellowTop Dual Purpose Battery
Sentiment score: 1
Number of reviews: 1
12-Volt, 450 Cold Cranking Amps, Size: 9 5/16" x 5 1/16" x 8 15/16" tall, Weight: 26 pounds, SAE PostReserve capacity of 66 minutes for constant performanceOptimal starting power even in bad weatherFifteen times more resistant to vibration for durabilityThis item is not for sale in Catalina Island
17. Energizer Lithium Button Cell 3V Cr 1632
Sentiment score: 0
Number of reviews: 1
235475
18. Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery
Sentiment score: 0
Number of reviews: 1
<b>Power density</b> - Per unit weight, the power provided by pure lead-tin products offers the greatest high-rate power density for your energy dollar. CYCLON's greater volumetric power allows engineers to consider more energy-supporting features.<b>Cycle life</b> - Compared to competitive lead pro...
19. Schumacher SE-1-12S 1.5A 6/12V Fully Automatic Battery Maintainer
Sentiment score: 0
Number of reviews: 1
Specially designed for vehicles in storage and cold weather battery maintenance for motorcycle, power sport, and car batteriesMicroprocessor controlled to automatically adjust the amperage rate to charge and maintainMulti-stage charging for added precision, safety, and battery lifeFeatures float-mod...
I have heard the Energizer charger will overcharge. I'm guessing it's a dumb charger, with no charge state detection (I haven't used it myself). The Energizer NiMH cells aren't bad, but you could definitely use a better charger. And if you're getting a better charger, you might as well get better AA batteries too. I recommend you get these ones:
Get this package first to get the highest quality charger on the market:
You need that charger to get the full life out of Eneloops. If you take care of them, Eneloops will last at least a decade, maybe longer.
NiMH cells usually peak at about 1.45 volts when fully charged. Because of variations in voltage testing devices and their test probes, you could get slightly different numbers. The best chargers do not rely solely on peak voltage to detect the full charge state. They watch for a peak voltage, then a slight drop in voltage, and finally an increasing cell temperature. That's what the Eneloop charger does, and that's what most fancy aftermarket chargers do too. The difference is the Eneloop charger is much cheaper, so that's what I usually use.
I have some fancy aftermarket chargers also, but I only use them if I run out of Eneloop chargers for a lot of cells, or if I need to use their analyzer features. One of them runs also on DC power, so I can use it with a solar panel (which I haven't tried yet). So, bottom line, you probably don't need anything other than the Eneloop charger.
If you want to build it yourself: you are on the right track.
If you want a (almost) ready solution, then this might be what you are looking for. It's a simple 11.1V - 3S case with (5V) buck converter and a BMS. You should test if your horn works down to 9V. If that's the case then this will be an excellent solution.
>Given the voltage and current requirements, should I expect to be able to build this in a convenient handheld size and weight form factor?
This will depend on your usage. You should test the horn and calculate it's power consumption.
>Does a 4S system sound reasonable here? If so what kind of battery protection and charge circuit am I looking for?
As stated above, you need to test your horn to test its voltage range.
>Can I reasonably charge a 4S system from USB? Is there a convenient boost converter board out there to do this, or built into a 4S battery management board?
For simplicity I would go for a dedicated 3S or 4S charger.
>Should I instead consider a single cell battery system with a DC-DC boost to drive the load? That would seem easier to charge and manage the battery, but 3.7V to 12-14V at 10A seems like it might be a hefty boost converter.
14V * 10A = 140W.
140W/3.0V = 46A
You'd need to draw 46A from your 1S pack of cells.
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Not exactly your answer, but I highly recommend getting some quality low self-discharge NiMH rechargeable batteries. The Amazon Basic ones are good. Not only rechargeable, but they don't leak. Eneloop is the gold standard as well and they come with a decent charger.
You basically get a free charger with this pack:
Panasonic K-KJ17MCA4BA Advanced Individual Cell Battery Charger Pack with 4 AA eneloop 2100 Cycle Rechargeable Batteries https://www.amazon.com/dp/B00JHKSMJU/ref=cm_sw_r_cp_api_i_.aQ3Db9XMZ1SM
My original post is based on trying to replicate from pictures what someone else has done which, presumably, worked at some level. Metal detector technology, particularly in the battery department, is still in the stone age. Dealing with 8x AA cells is unreasonable and ends up with a ton of crap in the landfill, hence my wanting to swap out so something better.
So, if building something like this is complicated, unsafe, etc... what's the happy path to getting to where I want to be?
Something like https://www.amazon.com/TalentCell-Rechargeable-3000mAh-Lithium-External/dp/B01M7Z9Z1N
and setup an adapter from the current battery pack connector to convert to it?
To be clear, I'm not doing this because I have any desire to build a battery pack, I'm just trying to get somewhere more reasonable than a fistfull of AAs.
>https://www.amazon.com/dp/B01KYZ5R2G/ref=cm\_sw\_em\_r\_mt\_dp\_U\_5ySBCb2GB29DZ
Ah, thank a bunch. I just assumed that the charger would go to the battery leads. I think I get it now. Thanks for the help!
Would one hook up this board in the same manner? Charger to P+ / P-? I hope I didn't damage anything hooking it up how I did.
https://www.amazon.com/dp/B00JJIZYSC/ref=cm\_sw\_em\_r\_mt\_dp\_U\_8PYBCb1P7T78X
How many? If a bunch, your best bang for the buck is these:
http://www.hobbyking.com/hobbyking/store/__84348__Turnigy_Rechargeable_Battery_AAA_900mah_NiMH_4pc_US_Warehouse_.html
Fewer, you can probably save on shipping with these:
https://www.amazon.com/AmazonBasics-Rechargeable-Batteries-8-Pack-Pre-charged/dp/B00CWNMXQW/ref=sr_1_1?ie=UTF8&amp;qid=1468606777&amp;sr=8-1&amp;keywords=nimh+aaa+amazonbasics
AAs available from both sites also.
yes absolutely.
you may lose some life if you don't use matched cells but this is COMMON
RC Car battery packs (before lithium) worked this way.
you had 7 and 8 cell sub c cell packs. any of those chargers will charge your pack just fine.
charge at 1amp should be plenty safe a decent charger will auto detect full and stop.
do be sure to charge them separately the first time then discharge and charge "as a pack" only so the cells don't mismatch.
this will work just fine
http://www.amazon.com/gp/product/B003MXMJX8/ref=pd_lpo_sbs_dp_ss_2?pf_rd_p=1944687602&amp;pf_rd_s=lpo-top-stripe-1&amp;pf_rd_t=201&amp;pf_rd_i=B002PECWXC&amp;pf_rd_m=ATVPDKIKX0DER&amp;pf_rd_r=1SVXNCYT30XW7S7HEZA8
and it is cheap too. you should be able to get away with a 2amp charge if your using 2amp hour or better cells.
>with 75min reserve capacity... yet it only has 66min reserve capacity.
That smells like an advertising gimmick, if you test it after charging the battery to 15.0V or 14.5V down to 10.5V then obviously you get longer service, I wouldn't worry too much about that.
>Whats the best deepcycle 12v battery i can get.
You could look at the size of the battery tray under the hood (and available height) if a larger battery will fit, that should improve reserve capacity.
Another thing to look at is the number of charge/discharge cycles, ...and 300+ discharge/recharge cycles, cheap to buy could mean expensive to replace often.
That is an interesting thought. For my lights that take 3 cells, I was thinking of getting several of these battery holders so that i could run eneloops in parallel and wire them to the lights. In a setup like this, I wonder if it would be worth putting an inline fuse between the packs and the light just for added safety? Or maybe there is a better strategy other than linking together battery holders.
Edit: If I'm wiring in battery holders, I suppose I could also just go with 3 D cells in a holder like this instead of bothering with AAs in parallel.
Edit2: One last crazy option came to mind. I could wire a 3 D cell holder to the lights, and then use 3 of these AA to D cell converters to use my existing Eneloops in parallel.
> https://www.amazon.com/Battery-Electric-AA-Converter-Convert/dp/B015T7TERI
That's perfect! Thanks so much!!
Batteries haven't swelled at all. They are reading 13V.
i did move them alittle to bring them up stairs and i wired them up.
I purchased this charger:
http://www.amazon.com/gp/product/B0000AXTUY/ref=oh_details_o00_s00_i00?ie=UTF8&amp;psc=1
Seems hopeful. Maybe i have charged them in the past year.
*Edit: I plan on hooking these up to a inverter this weekend so i can play videogames in the park for a few hours. Will i be able to?
Ah then you're in luck! In my experience, if you hit right voltage for little electric motors like this, they'll turn. If you can't supply enough power, they'll turn slowly but they'll work. Also, again these batteries might not last long (I would imagine minutes, compared to hours for AA batteries). I'm not sure exactly what you're looking for as a form factor but here are some options for small, high power, 3V batteries:
http://amzn.to/2r4m5yX
http://amzn.to/2sCz5xY
http://amzn.to/2s2JHZV (not necessarily high power but it might work)
I believe these are the droids you're looking for:
https://www.amazon.com/Battery-Electric-AA-Converter-Convert/dp/B015T7TERI
Keep in mind that you need to account for whether there's one battery, or two batteries in your device.. and if there's two batteries, whether they're in serial or parallel. There's a couple of these floating in amazon for each case iirc, so just buy the right one
For low voltage batteries, I recommend Barsukov's book (from Texas Instruments); "Battery Power Management for Portable Devices"
He means to use these batteries and these converters.
Normally I'd make the case for rechargeable AA cells but those get very expensive for occasional use electric candles.
Here your go: only 1kwh https://www.amazon.com/dp/B004LPIYJ4/ or here is one with 3.2kwh https://www.amazon.com/dp/B01M61VLBZ/
https://smile.amazon.de/gp/product/B01FX1LVQM/ref=oh_aui_detailpage_o01_s00?ie=UTF8&amp;psc=1 It's this clock. The note with the battery is on the 5th picture (in English)
Hello again 1Davide, here's that link.
Gikfun 2S Lithium Input Ouput Protection Board PCB 7.4V 3A for Arduino (Pack of 2pcs) EK1785 https://www.amazon.com/dp/B01KYZ5R2G/ref=cm_sw_r_cp_apa_i_DM2vCbVX1JWA8
https://www.amazon.com/Enersys-Hawker-Cyclon-0810-0004-Battery/dp/B0002ILK86
https://www.amazon.com/gp/aw/d/B07TVLKMH6?ref=ppx_pt2_mob_b_prod_image&amp;th=1&amp;psc=1
Found it in english.
Mechanism looks like your basic one found in almost all battery powered clocks. Even if an Alkaline damaged it, a replacement costs about $2.
A picture shows it with a Duracell, which I don't think come any way but alkaline.
> But my question is, are there any major downsides to using rechargable batteries? When I was younger I used to be told that they don't hold their charge for anywhere near as long in storage and they deplete quicker when being used but are there any tests to back this up?
When we were younger (well, when I was anyway), rechargeable batteries sucked. They didn't hold their charge long at all in storage, and it didn't take long before they seemed to permanently lose their charge. There doesn't need to be any tests to back this up because it was obvious to anybody using them that they sucked. They are much better now, though. A standard rechargeable AA battery (Eneloop or one of the many generics) can be recharged 1,000 times and are slightly more expensive than alkalines but nowhere near 1,000 times as expensive. In my experience, they are a good value money-wise, and of course they cut down on waste which makes them better for the environment. A lot of people around here and /r/flashlight say that they actually perform better in high-performance applications as well, but I don't know enough about that to really be able to comment on it.
I'm in the process of switching my house to rechargeables and have more or less settled on these. They are made in Japan in the same factory as Eneloops but are cheaper. I'm not opposed to other brands at all, but these (in AA and AAA) are what I have been buying. I basically only use alkalines in applications where I'm not sure I'm going to get the batteries back and in very limited applications that call specifically for alkalines (my smoke detectors and thermostat both say "Alkaline batteries only" on them for some reason).