Dirt Cheap Lithium Battery! Cheaper than Lead Acid. You will love this thing!

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  • Published on Jul 16, 2019
  • Current ebay source for these batteries (the 40ah rt are out of stock everywhere. 138ah is more common, and cheaper for the size):
    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FValence-u-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V-Rechargable%2F123981514990%3Fhash%3Ditem1cdddfc8ee%3Ag%3AN7AAAOSw8YddsIJS
    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FRechargeable-Valence-u-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V%2F153729037971%3Fhash%3Ditem23caf6f693%3Ag%3A7D0AAOSw3hxdjNnr
    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FRechargeable-U-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V-Black%2F123944790411%3Fhash%3Ditem1cdbaf698b%3Ag%3A-8gAAOSwjPldqhqg
    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FValence-Lithium-Battery-U27-12XP-12V-138AH-1-766-kWh%2F123978869026%3Fhash%3Ditem1cddb76922%3Ag%3AacgAAOSwm-FdgTyW
    And yes, the price has increased for many listings ever since I made this video. Most sources are completely out of stock. If you want a cheap lithium battery that is not used, check out my website: www.mobile-solarpower.com/lithium-batteries.html
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Comments • 1 542

  • DIY Solar Power with Will Prowse

    Current ebay source for these batteries (the 40ah rt are out of stock everywhere. 138ah is more common, and cheaper for the size):
    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FValence-u-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V-Rechargable%2F123981514990%3Fhash%3Ditem1cdddfc8ee%3Ag%3AN7AAAOSw8YddsIJS

    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FRechargeable-Valence-u-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V%2F153729037971%3Fhash%3Ditem23caf6f693%3Ag%3A7D0AAOSw3hxdjNnr

    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FRechargeable-U-charge-XP-Series-U27-12XP-Lithium-Battery-12-14-6V-Black%2F123944790411%3Fhash%3Ditem1cdbaf698b%3Ag%3A-8gAAOSwjPldqhqg

    rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575441924&toolid=10001&campid=5338408166&customid=&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FValence-Lithium-Battery-U27-12XP-12V-138AH-1-766-kWh%2F123978869026%3Fhash%3Ditem1cddb76922%3Ag%3AacgAAOSwm-FdgTyW


    And yes, the price has increased for many listings ever since I made this video. Most sources are completely out of stock. If you want a cheap lithium battery that is not used, check out my website: www.mobile-solarpower.com/lithium-batteries.html

    • dominodoggy1
      dominodoggy1 Day ago

      It’s best to keep these things secret sometimes. The guys who sell the used batteries realized they can charge a lot more for them since they happen to be 90% of new capacity. I mean, wouldn’t you?? It’s aggravating but sometimes putting stuff publicly online kills the thing. Share with friends and family. Good life lesson. Same thing with great hiking spots or low key camping spots. If you make a public video it will draw the tourists and all of a sudden your never-crowded sweet fishin’ spot is overrun with people. Keeping things secret is a good idea sometimes.

    • Jumbo Palumbo
      Jumbo Palumbo 4 days ago

      @countryside Good luck with those, and expect about $10 per amphour. There are only one or two sources for them. And for RV living they are (in my opinion) not an option.

    • countryside
      countryside 5 days ago

      @Michael Hayes How about Edison batteries?

    • DIY Solar Power with Will Prowse
      DIY Solar Power with Will Prowse  11 days ago +1

      @Michael Hayes ohh yeah, understood. It's a bummer. They used to be cheaper :(

    • Michael Hayes
      Michael Hayes 11 days ago

      @DIY Solar Power with Will Prowse yes, you are correct on all points. I'm just miffed about the price.

  • Jon John
    Jon John 3 hours ago

    I have the 12v 27xp series. Do I need a bms for two batteries in parallel

  • Peter Dubyoski
    Peter Dubyoski 20 hours ago

    Could be from beds. There will be lots available if that is the case. Beds adjustable on the move. Replacement cycle is probably two years.

  • Goudrelle
    Goudrelle Day ago

    350 dollars for each used batteries......Rip off

  • smooth jamie
    smooth jamie 2 days ago

    @3:00 you mean Current, stop saying Ampereage! You don't go outside and go "Hey I wonder what the farenheitage is today" just sounds stupid.

  • ImakeSnowflakesMelt
    ImakeSnowflakesMelt 3 days ago

    Wow talk about throwback with the Ripcurl shirt

  • Mr internet
    Mr internet 3 days ago +1

    You're going to make a great used car salesman or politician someday.

  • Center 4 Nerds
    Center 4 Nerds 3 days ago

    Scrolling through I see two green batteries and say hey those look like Wow (workstation on wheels) cart batteries I deal with at work... Says they come from medical equipment (yup I bet they are wow cart batteries)

  • Tommy
    Tommy 3 days ago +1

    Hey, what's the stuff that you use to measure the energy taken from the batteries?

  • Mr. P
    Mr. P 4 days ago

    batteries are by far the most complex method to manage in these situations. My vote is for small 3.7 to 4.2 volt lipo cells managed by bms chips. I will and have tackled this for small units for electric bicycles for exampleS.

  • Tig3rj
    Tig3rj 4 days ago

    Count how many times he says the word "Used" :)

  • Rjr J
    Rjr J 4 days ago

    How does lithium compare to forklift batteries for longevity?

  • Jumbo Palumbo
    Jumbo Palumbo 4 days ago

    Are these the old style Lithium based batteries that potentially catch fire? I found very little information about their technology. Is there any off gassing that would require a vented compartment? I would love to use a few to power more 'stuff' in my RV.

  • mikkelido
    mikkelido 5 days ago

    How are you comparing the batteries without even considering their capacity? Not that I prefer the PbAcid, but they would still be cheaper if you consider an 80Ah capacity... and the LiIon are not new...

  • elektro3000
    elektro3000 5 days ago

    Are these significantly lighter than lead-acid batteries? Any idea how much the 138Ah ones weigh? I'm interested in trying one of these to replace a car battery...any reason they wouldn't work for that?

  • douglas carpenter
    douglas carpenter 5 days ago

    I am disabled. I use a battery powered wheelchair. I am an active guy still and batteries only last a year at best. Do you think these would last longer even though used?

  • Nomadic Pioneer
    Nomadic Pioneer 5 days ago

    My question is how many of these do you have to buy to equal a battleborn at $300 + each four of them would cost $1,200 + and the battleborn is under a $1,000.

  • Nick Ward
    Nick Ward 6 days ago

    What's the best batterys for a mobiley scooter becus most of the scooters have two batterys about the same size as a 12v car battery?

  • Sylvia Montejano
    Sylvia Montejano 6 days ago

    ...and now they are $300 PER BATTERY...hurry up guys!!

  • ken ng
    ken ng 8 days ago

    $950 for one.?sick..Go AGM!!100$.

  • Nicky Bocker
    Nicky Bocker 8 days ago +1

    Expensive for a used battery

  • GreyGeek
    GreyGeek 8 days ago

    5 months later and the price is $350. Supply and demand!

  • Jason Staats
    Jason Staats 9 days ago

    I don't understand anything you're saying.

  • Tom McCormack
    Tom McCormack 9 days ago

    I am impressed with your knowledge. I have many questions for projects going forward. I may just hire you for your guidance as I move forward.

    • W.W.
      W.W. 8 days ago

      Hire a professional not a TVclip personality. He doesn't know shit

  • s G
    s G 9 days ago

    I don’t see whats wrong with lead acid batteries. When used right they can last up to 10 years. I have a few older than that, that are still working.

  • RK Aitch
    RK Aitch 10 days ago

    Can you add these to a lead acid system or all need to be LI?

  • 10p6
    10p6 11 days ago +1

    Those are not even remotely close to the price of Lead Acid Batteries. Ebay has them listed for $350 or more.

    • DIY Solar Power with Will Prowse
      DIY Solar Power with Will Prowse  10 days ago

      Usable capacity of 138ah LiFePO4 is equivalent of 276ah. Coulombic efficiency of lead acid is 70-95%. LiFePO4 is 99%. How am I wrong?

    • DIY Solar Power with Will Prowse
      DIY Solar Power with Will Prowse  10 days ago

      Then why dont you understand? Lol

    • 10p6
      10p6 11 days ago

      @DIY Solar Power with Will Prowse Err no. I have a Electric Truck and know a lot about high capacity lead and lithium batteries.

    • DIY Solar Power with Will Prowse
      DIY Solar Power with Will Prowse  11 days ago

      They went up in price. And they are still cheaper than lead acid due to coulombic efficiency and usable capacity. Way cheaper

  • Mad Mardigan
    Mad Mardigan 11 days ago

    $ 450 bucks each now

  • Chris Jacobs
    Chris Jacobs 11 days ago

    Someone's in looove. :-p Just joshin, your energy is pretty cool.

  • Ken James Jr
    Ken James Jr 11 days ago

    Dirt Cheap my ass...

  • C Buf
    C Buf 11 days ago

    Hi love your videos. I have a question for you I’m building a Florida flats boat and want a lithium battery for my house battery to run livewell, lights, radio, and a trolling motor that draws 40 amps on high power. I have room for a group 31 but don’t want the weight. I also need to be able to charge the battery when I get back to the dock. What would you recommend? I know I can pick most any lithium battery, but can I charge with a standard charge or do they require a special high volt charger?
    Thanks. Again keep on making videos, they are awesome.

  • rsg1963
    rsg1963 11 days ago

    Hey @Will, I have a (Actually 4 of them) 250AH battery I purchased off of Ebay. You can look it up with search on EBay and I'm certain you'll find it. Company is called dagastore, I believe they are the retailer for these Chinese-made units.
    Anyway, One of the batteries died. Not sure who is at fault but I think just the BMS gave up. Any suggestions on trying to get this unit back on-line? They replaced the unit which is great, but now I'd like to know if I can salvage this thing. Happy to PM you if you're ok with that.

  • colin rat
    colin rat 11 days ago

    My girlfriend doesn't understand why I have orgasms of a good batteries.....😜
    Sometimes she wishes she was a battery..... But I have lived off grid for 20 years and love it.

  • colin rat
    colin rat 11 days ago

    Nice job and we'll explain from a youngster.

  • C. Harris
    C. Harris 12 days ago

    Love the video. Could this type of battery be used in golf carts? After 30 minutes of continuous use I can really feel the lead batteries getting weaker by the minute.

  • Shaiban Natha
    Shaiban Natha 12 days ago

    Do these batteries also work with solar systems? Or just for grid?

  • Pat Aherne
    Pat Aherne 12 days ago

    I can buy a new 80 Ah 350 watt/hour, deep cycle, gel, {Exide) 12 volt battery, with 12 month guarantee over the counter for €110 ($120) here in Ireland. No sweat. If I went shopping for them I could do it cheaper.
    The manufacturers spec. says it will produce 500 cycles.
    That's almost 2 years before replacement.
    What you going to get with a second hand battery?

  • Emik Zotic
    Emik Zotic 12 days ago

    You cant use these in the cold :(

  • Terry Dunnett
    Terry Dunnett 12 days ago

    If you go to series connection with 24vdc the capacity still remains as a total of 40ah.

  • John Schotanus
    John Schotanus 12 days ago

    Yep selling for $270 I looked for 1

  • Duncan Margetts
    Duncan Margetts 12 days ago

    Whoah that battery monitor is cool.. got a link for that one? (subbed as well!)

  • the skullyhippiedude
    the skullyhippiedude 12 days ago +2

    Waiting for him to jumper the terminals with his arm

    • bren106
      bren106 11 days ago

      I would be far more worried about jumpering the terminals with one of those wrenches on the magnetic strip directly above the batteries. 08:30

    • the skullyhippiedude
      the skullyhippiedude 11 days ago

      @probro clearly you are used to a cleaner environment than I. The battery terminals on the transit buses I work on always have a mixture of dirt, grease, and frequently water. Makes one a little sensitive to accidental grounding

    • probro
      probro 12 days ago

      You can safely touch dc voltages up to 60 V. Probably even more but 60 V is the industry safety standart.

    • James Buckle
      James Buckle 12 days ago +1

      Wouldn't do much, skin has a very high resistance.

  • Jay H
    Jay H 13 days ago

    Do you sell a full set up if so 💵

  • Julio Gonzo
    Julio Gonzo 13 days ago

    They probably have a service window and get replaced before they fail. The hydro here scraps lead acid batteries and they are still good. They get bought and resold for solar.

  • Eddie Mcmichen
    Eddie Mcmichen 13 days ago

    Lol nope still in stock nice vid

  • Rob Driver
    Rob Driver 13 days ago

    Maybe I'm missing some information here but are you using two batteries in parallel to achieve the amp hour rating of one? If you are using two in parallel you should be getting double the amp hours as a single one. That would put them at 45% of rating. Maybe you had that already figured in to it and I just missed it.

  • Greg Bly
    Greg Bly 13 days ago

    Wow even some one with minimal experience like me could set these batteries up . It's safe and yes a bargain if you do your research. Thank you

  • Fishing Mayhem
    Fishing Mayhem 14 days ago

    Could these batteries be used in a Bass Boat? I have 3 12v AGM batteries in parallel (I think) for a 36V trolling motor and 1 12v AGM to start my boat and run the accessories. There has been a few occasions my accessories have drawn the single 12v battery low enough it couldn’t start my outboard motor. I use a Minn Kora MK460C 4 bank charger that does Flooded, AGM and Gel charging. Would I need a new charger?

  • Jason M
    Jason M 14 days ago

    Dude are you wearing mascara

  • greg larsen
    greg larsen 14 days ago

    Where do I get solar panels cheap

  • clavo
    clavo 14 days ago

    William; your delivery and sense of humor is great. Would like it if you related your amp and watt qualifications to a refrigerator or small air conditioner. How long will they power a 750 watt refrigerator for; for example. Things people will likely want to at minimum want a back up for. And if you did the math on a dry erase board I will personally send you an A+. As it is you still get an A.

  • Black Opal
    Black Opal 14 days ago

    12V 40ah (480Wh) + 12V 40ah (480Wh) = 1020Wh ?? lol, where'd you pik up the extra 60wh?? Is it just 18650's packed in there?

  • Go Clunker
    Go Clunker 14 days ago

    How would these work running a car?

  • J W
    J W 14 days ago

    Fanboy

  • toolman
    toolman 14 days ago

    Will these work for a trolling motor for a boat?

  • BRADY DENNIS
    BRADY DENNIS 14 days ago

    No wonder I can't get these for free anymore 😔. I have 100 in 10 banks of 10 in series in my heated and cooled generator shed connected to 4 very large 30amp output commercial APC UPSs connected in parallel and run into a mains panel. Then a 10kw generator running to "FULL BRIDGE RECTIFIERS". lol. to charge the batteries. I have to start my generator just to make sure it runs these days. I work in E-Waste recycling and I built all this on the super dirt cheap with the help of my local utility company installing the proper mains switching contactors so I can't backfeed the grid. I'm on grid but I have many extended outages (days) throughout the winter. I can go off grid and even run my baseboard electric heaters for a short time without even knowing it happens. I use the built in relay outputs from the UPSs to shed unnecessary circuits as my batteries drain and outputs from the ups network cards to start my generator, monitor the banks, and text my phone when I go off grid and return.

  • thefireman285
    thefireman285 14 days ago +6

    I think the price of these used batteries has doubled now.

  • Matt Hobbs
    Matt Hobbs 14 days ago

    Would these work for a 24v trolling motor on a boat

  • ammad altaf
    ammad altaf 14 days ago

    Bro a 3kw inverter with 24v battery system and another 3kw inverter with 48v battery system which one
    will be better and plz explain why?

  • David Elliott
    David Elliott 14 days ago

    LiFePO4 have a very good degradation performance.