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Old 03-03-2011, 07:06 AM   #21 (permalink)
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Battery spec sheet

Yeah I thought so. I may be missing some detail but they sent me a whole package of info. I'm no expert so here's what the data sheet said. The first part is for the individual cells and the second is for the whole pack. I was kinda surprised by the weight of the whole thing. Seemed really heavy. Please feel free to point out problems with this package.

Performance Data Individual Battery
Single Module Parameters U27-12XP
Module Capacity at 20Hr. Rate Ah 138.0
Module Capacity at 5Hr. Rate Ah 138.0
Module Energy at 5Hr. Rate Wh 1766
Module Nominal Voltage V 12.8
Module Charge Voltage(max) V 14.6
Module Charge Voltage(min) V 13.8
Module Discharge Cutoff V 10.0
Module Discharge Current Max Continous Amps 150.0
Module Discharge Current Max Peak (30 seconds) Amps 300.0
Module Length mm 306
Module Width mm 173
Module Height mm 225
Module Weight kg 19.5
Module Energy Density* Wh/L 148
Module Specific Energy* Wh/kg 91
Moudule Impedance mΩ 5

Total System Parameters
Modules in Series 5s
Modules in Parallel 8p
Total Number of Modules 40
System Discharge Voltage V 64.0
System Charge Voltage(max)^ V 73.0
System Charge Voltage(min)^ V 69.0
System Discharge Cutoff - Minimum V 50.0
Total Battery System Wt. kg 780
Total Battery System Vol. L 476
System Discharge Current Max Continous† Amps 1200
System Discharge Current Max Peak (30 seconds)† Amps 2400
Total Battery System Capacity* Ah 1104
Total System Energy* kWh 70.7
Discharge Profile† % DOD 100%
Utilized Battery System Capacity† Ah 1104
Utilized Battery System Energy† kWh 70.7
Recommended Controller Interface
Model Quantity
U-BMS-XP-LV, XP series BMU; 16 - 150V 1

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Old 03-03-2011, 05:56 PM   #22 (permalink)
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Based on those specs its actually a bigger battery than your original 1000ahr and if the price is legit, sign me up!

I will take one.

I could probably figure out a way of making it fit in my C-car, a 200 milish range would be nice

Too bad the darn thing is at such a low voltage though, its really more of a 64v battery pack, for the type of charger I have and the type of controller I have, would be better off with one more module in series.

Those would work but my speed would not be real great. Especially near the end of discharge at 50 volts 35mph here I come.

Cheers
Ryan
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Old 03-09-2011, 07:11 PM   #23 (permalink)
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Quote:
Originally Posted by Bigswampthing View Post
I recently received a call from Valence. They actually got back to me the very next day! They were perfectly willing to give me a quote over the phone for a specific battery system that would suit may needs and indeed sell me just one. They must be getting enough interest.

Example I had quoted:
72 volt 1000 ah, capable of 1200 amps was $2500

They offered quantity discounts and several reasonably priced battery management and diagnostic units.

Battery management $345
Diagnostic kit for installers $360

Contact was: Jonnie Hefty (512)527-2909
It appears that you are mistaken the $2500 is for one of the 40 modules.
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Old 03-10-2011, 07:22 AM   #24 (permalink)
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Makes no sense

The quote I received was a verbal quote for my system over the phone. She may have misspoken. Even so, that would mean that this thing is $100,000. That's foolish. Oh well. back to the drawing board. Still too heavy any way.
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Old 04-14-2011, 05:40 PM   #25 (permalink)
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OK I double checked the price by going through the whole quote process, a 110ahrx144v setup is over $19k but the BMS is cheap. I might have to buy the BMS then buy another brand of Lithium
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Old 04-14-2011, 07:46 PM   #26 (permalink)
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Quote:
Originally Posted by Bigswampthing View Post
Yeah I thought so. I may be missing some detail but they sent me a whole package of info. I'm no expert so here's what the data sheet said. The first part is for the individual cells and the second is for the whole pack. I was kinda surprised by the weight of the whole thing. Seemed really heavy. Please feel free to point out problems with this package.

Performance Data Individual Battery
Single Module Parameters U27-12XP
Module Capacity at 20Hr. Rate Ah 138.0
Module Capacity at 5Hr. Rate Ah 138.0
Module Energy at 5Hr. Rate Wh 1766
Module Nominal Voltage V 12.8
Module Charge Voltage(max) V 14.6
Module Charge Voltage(min) V 13.8
Module Discharge Cutoff V 10.0
Module Discharge Current Max Continous Amps 150.0
Module Discharge Current Max Peak (30 seconds) Amps 300.0
Module Length mm 306
Module Width mm 173
Module Height mm 225
Module Weight kg 19.5
Module Energy Density* Wh/L 148
Module Specific Energy* Wh/kg 91
Moudule Impedance mΩ 5

Total System Parameters
Modules in Series 5s
Modules in Parallel 8p
Total Number of Modules 40
System Discharge Voltage V 64.0
System Charge Voltage(max)^ V 73.0
System Charge Voltage(min)^ V 69.0
System Discharge Cutoff - Minimum V 50.0
Total Battery System Wt. kg 780
Total Battery System Vol. L 476
System Discharge Current Max Continous† Amps 1200
System Discharge Current Max Peak (30 seconds)† Amps 2400
Total Battery System Capacity* Ah 1104
Total System Energy* kWh 70.7
Discharge Profile† % DOD 100%
Utilized Battery System Capacity† Ah 1104
Utilized Battery System Energy† kWh 70.7
Recommended Controller Interface
Model Quantity
U-BMS-XP-LV, XP series BMU; 16 - 150V 1
Looking at the data sheet and reading the OP, i see a misunderstanding of battery system rating.
The battery above has a 138 AH rating. 12 of them in series will have a 138 AH rating at 144V.
He is talking about a 1000AH pack @144V
That would be 72 batteries!

The post above with a 72V 1000 AH rating would be 36 batteries. 6 series 6 parallel.

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