What batteries can I get for $5k

Technical discussion on converting internal combustion to electric
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Richo
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What batteries can I get for $5k

Post by Richo » Thu, 25 Jun 2015, 20:28

This is a thread started for 7Circle. Image
7circle wrote: There is so much miss leading info on the web's and from unit's and other research.

I have some saved cash .. and before I waste it I want to buy some good batteries.

Not second hand used one's.

So for $5000 what cells would be good.

But I need a BMS and 6hr charger (C/6).

So what would allow me 195 kW peak (10sec)
And 95W continuous.

EIG SOUND popular for power applications.

Need to do more study.

$1/wh would give me 5000 W.h
50 kW cruise power at 100km/h.
5000/50000 = 0.1hour 6min

10KW at 40km/h gives 30min
Or 20km

So 200 kW peak 5 kW.h 40C rate discharge.
50kW is 10C
10kW is 2C

There are some dream targets of midnight persuasion.

I hope in 2015 they are achievable.

Cheers 7c


7circle wrote: What type of batteries should I buy for conversion?

$5k maybe less

For plugin hybrid conversion.

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Richo
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What batteries can I get for $5k

Post by Richo » Thu, 25 Jun 2015, 20:31

offgridQLD wrote: My vote would go to OEM ev cells, Leaf, Tesla. Lifepo4 is heavy, bulky and not nessaseraly inexpensive compared to salvaged OEM cells.

Kurt
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Richo
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What batteries can I get for $5k

Post by Richo » Thu, 25 Jun 2015, 20:39

Ok as a baseline we could look at the TS cells and go up.

45 x 3.2V60Ah TS cells
$4860.00
103.5kg
8640Wh
~25kW continuous
~50kW peak?!?
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Richo
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What batteries can I get for $5k

Post by Richo » Thu, 25 Jun 2015, 20:45

200 x 3.2V10Ah Headway cells
$4840.00
70kg
6400Wh
~20kW continuous
~64kW peak
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Richo
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What batteries can I get for $5k

Post by Richo » Thu, 25 Jun 2015, 20:52

100 x 3.6V8.5Ah LiMn2O4 cells
USD$3480
32kg
3060Wh
~61kW continuous (claimed)
~73kW peak (Claimed)
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antiscab
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What batteries can I get for $5k

Post by antiscab » Fri, 26 Jun 2015, 06:01

40 x leaf modules
$5k ish
152kg
20'000Wh
30kw continuous (probably)
150kw peak (10 sec, claimed)

pushing all the above cells that hard won't lead to overly good service life to be honest
Matt
2011 Blade Electron mk6
2007 vectrix - 145'000km
1998 Prius - needs batt
1999 Prius - needs batt

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Richo
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What batteries can I get for $5k

Post by Richo » Mon, 29 Jun 2015, 20:54

Where would we get leaf cells? other than a hi-jacked leaf Image
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What batteries can I get for $5k

Post by Richo » Mon, 29 Jun 2015, 20:56

antiscab wrote:pushing all the above cells that hard won't lead to overly good service life to be honest


I agree but it wasn't part of the technical specs Image
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