LiFePo4 A123 Systems, best rechargeable Battery 18650 for EV, Solar, Wind and more.

LiFePo4 A123 Systems.
This is today the best rechargeable Battery for EV, Solar, Wind and more.
I have purchased this 18650 3.3V or(3.2V) 1100mA battery on eBay for about 0.6$/Wh including shipping.
In large quantities probably over 1KWh you can get this at even lower price/Wh
For now this are probably the best battery for almost any application if compared price vs performance.
They are much safer than other Lithium batteries and will not explode or burn.

Category:

Science & Technology

Tags:

• LiFePo4
• A123
• Systems
• rechargeable
• Battery
• EV
• Solar
• Wind
• Lithium
• iron
• phosphate
• BMS
• 18650

[thegreatnoleander]

According to user responses on EV forums, A1234 is the worst for the money. It's an awesome battery buy it's way too expensive. Thunsder-Sky and CALB took the lead, with Headway not too far behind. A123 cells are only good where you can't fit anything else in the given area and you absolutely need that high discharge rate or you can afford to buy the most expensive thing around.

[electrodacus]

@thegreatnoleander I paid 0.6$/Wh on this battery. How much cheaper are the others? and do they offer the same reliability and cycle life?

The cost of battery for comparison is usually done as $/kWh during the life of the battery.

This A123 have at least 2000cycles to 80% discharge and cost 2$ 3.3V 1000mA = 3.3Wh x 2000cycle = 6.6kWh for the lifetime so about 30cent /kWh stored.

Now the prismatic A123 20A may be better for large system but I do not think is under 20cent /kWh.

[PERIZ99]

Good info-

[9493760]

THANK YOU SIR. GIANFRANCO FRONZI. JAN.21/12

[electrodacus]

@ShadowwwLFS Thanks I need to search and see how they are.

Most LiFePo4 are about 0.6$/W including shipping and that is fine for me.

[ShadowwwLFS]

@electrodacus A123 Systems also has 20 Ah pouch cells - they're hard to find, but if you're lucky you can find them for $40/cell or so. :P

For 1 kWh you'd need just 15 of them, which'd cost you $600. Pretty expensive, but depending on what you need them for they may be worth the investment. :P

[electrodacus]

@ShadowwwLFS I do not know for sure that they are genuine but they work great.

I will also probably by more but I will need 1kWh battery and this are a bit small for this next application. I will still get LiFePO4 since this is a great technology for what I need but probably go with Headway 16Ah parts less soldering :) 

[ShadowwwLFS]

@electrodacus Hehe, good to know. I have 8 batteries from him (18650, going to use in 4s2p config for bike light with a 8W LED), and I still wasn't sure if they are genuine. Now I do, thanks. :)

[electrodacus]

@ShadowwwLFS Yes is the only one on eBay with this batteries.

[ShadowwwLFS]

What's the ebay seller you got them from? sz_ohmygod?