Walmart Booster Batteries

Batteries, Chargers, and Battery Management Systems.
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Boyntonstu   10 kW

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Walmart Booster Batteries

Post by Boyntonstu » Dec 02 2015 11:56am

http://www.walmart.com/ip/The-Everstart ... r/46528407


This starter features a durable ABS with rubberized housing, built-in 0.5W LED as flashlight and a 12000mAh lithium battery. Use this product as a jump starter, flashlight, emergency charger, or also charge your smart phone or any other devices via the USB output.

$39.00

Everstart Multi-function Jump Starter/Battery Charger, 2 Pack Savings Bundle $64.88


$3.00 a year warranty.

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Re: Check this out!

Post by 999zip999 » Dec 02 2015 12:38pm

Don't believe everything that's printed.

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Re: Check this out!

Post by Boyntonstu » Dec 02 2015 3:01pm

999zip999 wrote:Don't believe everything that's printed.
$3.00 warranty. Worth an investment of $12 for a 48V 12Ahr Li Ion battery?

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Re: Check this out!

Post by liveforphysics » Dec 02 2015 3:36pm

There is no technology currently in volume production that makes the claims of that device possible.

The last "10Ah" USB power storage battery device I bought measured at 2.2Ah.
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Boyntonstu   10 kW

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Re: Check this out!

Post by Boyntonstu » Dec 02 2015 8:24pm

I bought FOUR 12 V units with 2 year warranties for #147. 4 x 12 = 48V. Worth a $12 2 year investment methinks.

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Re: Check this out!

Post by 999zip999 » Dec 02 2015 9:27pm

I don't get any of the battery or your pricing math ? As it don't add up. Good luck.

Boyntonstu   10 kW

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Re: Check this out!

Post by Boyntonstu » Dec 03 2015 5:48am



Good things come in small packages.

A clone of mine.

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Re: Check this out!

Post by wesnewell » Dec 03 2015 6:12am

At almost 9lbs there's no reason it can't have 12ah of 3s 35C lipo. 20ah of 4s only weighs ~7lbs. 12ah of 35C 3s would only weigh ~3lbs. From reviews, max charge is 12.6V and that's 3s.
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Re: Check this out!

Post by dogman dan » Dec 03 2015 7:06am

I think it's plausible that it has 7 or 8 ah in there, of 12v. three pouches. I'm not sure I'm buying it that it's got 12 ah.


Looks great for some uses, like keeping a phone charged, or jumping a car that has no other problems than the battery died. Like not jumping it in 0 F, or something. Just you ran down the battery with a light left on or something.

Not a great buy to get 4 of them to make a bike battery out of them IMO. Look for a Christmas sale price on lawnmower batteries perhaps.

Boyntonstu   10 kW

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Re: Check this out!

Post by Boyntonstu » Dec 03 2015 9:03am

wesnewell wrote:At almost 9lbs there's no reason it can't have 12ah of 3s 35C lipo. 20ah of 4s only weighs ~7lbs. 12ah of 35C 3s would only weigh ~3lbs. From reviews, max charge is 12.6V and that's 3s.
Shipping weight includes,cables, clamps, charger, case etc.

I don't believe that the battery weighs 8.82 lb.

Where else can you get 12s 50.4V 12Ah with a 2 year unconditional money back guaranty for 150 bucks?

http://i.walmart.com/i/rb/How%20to%20us ... tarter.pdf


Notice the 0.5W LED Flash Light Built-In which can strobe. Imagine driving a car behind 4 up strobes.

Also, unlike the unit above, the 2 wires are plugged in instead of the on/off switch box making for easier connections.

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Re: Check this out!

Post by wesnewell » Dec 03 2015 2:18pm

No, for 12ah the battery only needs to weigh ~3 lbs, as I previously stated, and you even quoted. :?
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Mongoose 26" Ledge 2.1 mtb bike $99, yescomusa.com 48V 1000W rear hub kit $200, Hua Tong 72V 40A controller $35, 10ah 24s lipo $217=~43mph, range=45 miles @ 20mph. 25K miles and still going strong.
Huffy Fortress 3.0 with MXUS 3000 4T motor, 24s lipo, 96V 60A controller. Total cost with extras <$700. Top speed ~50mph
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Boyntonstu   10 kW

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Re: Check this out!

Post by Boyntonstu » Dec 03 2015 6:14pm

wesnewell wrote:No, for 12ah the battery only needs to weigh ~3 lbs, as I previously stated, and you even quoted. :?
Thank you for reminding me.

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What is this electronic device? Answer found.

Post by Boyntonstu » Dec 14 2015 3:45pm

This is the box between the Walmart 12V booster LiPo and the cables.

It does not like me placing the cells in series.

Any ideas?

Image
Last edited by Boyntonstu on Dec 20 2015 5:23pm, edited 3 times in total.

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Re: What is this electronic device?

Post by KarlJ » Dec 15 2015 6:33am

bit more detail

I barely know who walmart is.

Whats LoPo?

Boyntonstu   10 kW

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Re: What is this electronic device?

Post by Boyntonstu » Dec 15 2015 10:29pm

Answer found!


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Mounting the Walmart Booster Batteries

Post by Boyntonstu » Dec 16 2015 12:28pm

There are quite small and lightweight.

2 on each side with the LED's and charging port up.

Image

Image

I am awaiting bullet connectors to wire them in series.

There is a keyed and a round connector.

A keyed to a round will make for easy series connections.

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Re: Mounting the Walmart Booster Batteries

Post by dogman dan » Dec 17 2015 7:39am

Zip ties, wooo I'm impressed. New thread for every thought, even more impressive.

Boyntonstu   10 kW

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Re: Mounting the Walmart Booster Batteries

Post by Boyntonstu » Dec 17 2015 7:44am

dogman dan wrote:Zip ties, wooo I'm impressed. New thread for every thought, even more impressive.
Thanks for your compliments!

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Re: Mounting the Walmart Booster Batteries

Post by ecycler » Dec 17 2015 10:39am

I would add at least two or three more zip ties per side if that is the only fastener you plan to use. I have snapped a lot of zipties when lazily using them to fasten heavy things. Nothing worse than the sound of battery or two hitting the deck.

Also, curious to see how those walmart batteries perform for you - this is the first I have seen of them. Any specs you can link to?
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Re: Mounting the Walmart Booster Batteries

Post by WoodlandHills » Dec 17 2015 12:22pm

One thing to remember about zip-ties: they degrade when exposed to UV light. After a few months in direct sunlight they will get brittle and snap. This is why they are never used in aviation, they are only a temporay use item.

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Re: Mounting the Walmart Booster Batteries

Post by Kin » Dec 17 2015 2:16pm

WoodlandHills wrote:One thing to remember about zip-ties: they degrade when exposed to UV light. After a few months in direct sunlight they will get brittle and snap. This is why they are never used in aviation, they are only a temporay use item.
For what it's worth, can be less than a few months. I believe the black ones are better. I have some white ones in the desert for 9 days and they were super brittle by the end. They didn't snap on my bike, but afterwards just by moving them a small amount I snapped them.
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Re: Mounting the Walmart Booster Batteries

Post by ecycler » Dec 17 2015 2:22pm

These are pretty good and solve the UV issue, since he is in FL. The only problem I have had with them is that you can not get them perfectly tight like you can with the plastic ones and they are not quite as flexible:

http://www.amazon.com/Vktech-100pcs-Sta ... l+zip+ties
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Re: Mounting the Walmart Booster Batteries

Post by Boyntonstu » Dec 17 2015 3:08pm

ecycler wrote:These are pretty good and solve the UV issue, since he is in FL. The only problem I have had with them is that you can not get them perfectly tight like you can with the plastic ones and they are not quite as flexible:

http://www.amazon.com/Vktech-100pcs-Sta ... l+zip+ties
Thanks for the suggestions. It is a prototype. I was going to build a box, but for a quick trial, multiple zip ties are useful. My bike is garaged except for my evening ride time.

The SS ties should last a lifetime. Each side is less than 5 pounds.

I found these as well: http://www.ebay.com/itm/25-GOLIATH-INDU ... xy5rpSPSWk

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Re: Mounting the Walmart Booster Batteries

Post by Mundo » Dec 17 2015 6:24pm

Are those Lead Acid batteries?

Nylon ties won't be strong enough, I fully understand for testing purposes. Hit a little pot hole at speed, bye-bye batteries!

The black ties are more UV rated (a little stronger that the white ones). I'm not sure how strong the Stainless Steel ties are, but better than you have now.

Your rear rack looks questionable as well, consider adding some struts from the rack, to near the rear axle.
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Re: Mounting the Walmart Booster Batteries

Post by Boyntonstu » Dec 17 2015 6:32pm

Mundo wrote:Are those Lead Acid batteries?

Nylon ties won't be strong enough, I fully understand for testing purposes. Hit a little pot hole at speed, bye-bye batteries!

The black ties are more UV rated (a little stronger that the white ones). I'm not sure how strong the Stainless Steel ties are, but better than you have now.

Your rear rack looks questionable as well, consider adding some struts from the rack, to near the rear axle.

LiPo batteries. 4 x 12V

The rack is rated for 22 pounds and the load is about half of that.

Judging from the thickness and the design, I would expect the rack to carry 30-40 lb.

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