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forum thread Posted by organickiller • 2d ago
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forum thread Posted by organickiller • 2d ago

ECO-WORTHY 12V 90Ah Battery Lithium Iron Phosphate LiFePO4 Battery For RV $95.99

$95.99

$120

20% off
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https://www.ebay.com/itm/395218138738

ECO-WORTHY 12V 90Ah Battery Lithium Iron Phosphate LiFePO4 Battery For RV
$119.99. 20% OFF with code "LOVEIT20"
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https://www.ebay.com/itm/395218138738

ECO-WORTHY 12V 90Ah Battery Lithium Iron Phosphate LiFePO4 Battery For RV
$119.99. 20% OFF with code "LOVEIT20"

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15 Comments

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2 days ago
248 Posts
Joined Nov 2019
2 days ago
MaroonPocket778
2 days ago
248 Posts
4 of these in an electric golf cart ok for 48v?
1
2 days ago
1,327 Posts
Joined Apr 2008
2 days ago
bigjonnee
2 days ago
1,327 Posts
Quote from MaroonPocket778 :
4 of these in an electric golf cart ok for 48v?
should be no problem! 100 amps enough unless your golf car oversized or overpowered or something. (100amp @ 48V = ~5000 watts power!) Fully charge all of them to 14.4V then wire in series and you'll charge the whole golf cart at 4x that so 57.6 volts. Congrats you have 16 cell lifepo4 battery with built in BMS in each bat. You'll need to find suitable chargers but they are available in these common voltage.

Extra credit: each battery has 4 lifepo4 cells. that charge to max 3.6 Volts. 3.6*16 = 57.6 V. Thats the same voltsge the BMS's stops charging at!

90 amp- hour * 4 * 12.8 volt = 4608 Watt-hr or 4.6 Kilowatt hours energy storage. thats good! for Reference a tesla has 65 KWhr capacity.
Last edited by bigjonnee December 25, 2024 at 11:16 AM.
1 day ago
594 Posts
Joined Dec 2020
1 day ago
succ_my_deal
1 day ago
594 Posts
Dang. This is stupid cheap.
1 day ago
579 Posts
Joined Feb 2006

This comment has been rated as unhelpful by Slickdeals users.

1 day ago
253 Posts
Joined Feb 2009
1 day ago
taotoa07
1 day ago
253 Posts
Quote from zebra20zebra20 :
Don't forget to use the code 'FREE FIRE EXTINGUISHER"

The 1990s called, it wants its mullet back..
2
2
1 day ago
43 Posts
Joined Oct 2019
1 day ago
HustleCastle
1 day ago
43 Posts
these are probably 100 ah cells that couldn't pass the capacity test. I wouldn't be surprise if they test very close to 100ah
1
1 day ago
2,308 Posts
Joined Jan 2008
1 day ago
cellneuron
1 day ago
2,308 Posts
Very tempered to use in my car. Any suggestions how to charge it with alterator?
1

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1 day ago
297 Posts
Joined May 2013
1 day ago
wwglen
1 day ago
297 Posts
Quote from cellneuron :
Very tempered to use in my car. Any suggestions how to charge it with alterator?
They don't like the heat, they don't like the cold, and cannot provide the surge.

Stick to batteries intended for cars.
1 day ago
248 Posts
Joined Nov 2019
1 day ago
MaroonPocket778
1 day ago
248 Posts
Quote from HustleCastle :
these are probably 100 ah cells that couldn't pass the capacity test. I wouldn't be surprise if they test very close to 100ah

Think these are grade B cells?
1 day ago
248 Posts
Joined Nov 2019
1 day ago
MaroonPocket778
1 day ago
248 Posts
With no bms, what would be a food bms and balancer?
1 day ago
594 Posts
Joined Dec 2020
1 day ago
succ_my_deal
1 day ago
594 Posts
Quote from MaroonPocket778 :
With no bms, what would be a food bms and balancer?

Built in bms included
1 day ago
43 Posts
Joined Oct 2019
1 day ago
HustleCastle
1 day ago
43 Posts
Quote from MaroonPocket778 :
Think these are grade B cells?
I think so
about 14 hours ago
2,147 Posts
Joined Dec 2004
about 14 hours ago
Mungo
about 14 hours ago
2,147 Posts
Quote from cellneuron :
Very tempered to use in my car. Any suggestions how to charge it with alterator?
Doable but you would need a Supercapacitor to provide the surge power needed to start a car.


https://youtu.be/xEQ5P-hlWhs?si=seiZWNFO6aJNSk9l
about 1 hour ago
60 Posts
Joined Jul 2008
about 1 hour ago
tilua
about 1 hour ago
60 Posts
Quote from bigjonnee :
should be no problem! 100 amps enough unless your golf car oversized or overpowered or something. (100amp @ 48V = ~5000 watts power!) Fully charge all of them to 14.4V then wire in series and you'll charge the whole golf cart at 4x that so 57.6 volts. Congrats you have 16 cell lifepo4 battery with built in BMS in each bat. You'll need to find suitable chargers but they are available in these common voltage.

Extra credit: each battery has 4 lifepo4 cells. that charge to max 3.6 Volts. 3.6*16 = 57.6 V. Thats the same voltsge the BMS's stops charging at!

90 amp- hour * 4 * 12.8 volt = 4608 Watt-hr or 4.6 Kilowatt hours energy storage. thats good! for Reference a tesla has 65 KWhr capacity.

You need to remove the "4" from your calculation. This is not a 4KWh battery.

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about 1 hour ago
588 Posts
Joined May 2010
about 1 hour ago
Spikeli27
about 1 hour ago
588 Posts
Quote from tilua :
You need to remove the "4" from your calculation. This is not a 4KWh battery.

they are replying to 1st post which asks about putting 4 of these together for 48v.
I get that nobody wants to read but why go around correcting people so confidently?