They ended up being about $160 per 100 amp hour cell including shipping (4 days to get the cells from order to delivery to my office.) Thats more than ts or se cells, but they have a 3 year warranty. The cells are in stock in the usa so:
1. No cost to ship from china to the usa
2. No customs hassles/costs
3. Their shipping seemed to be less than 1/2 of what the other places I tried to get se cells from was going to be.
4. They actually take credit cards for payments.
My price for SE cells ended up being (with all the extra costs) about $155 (This is extrapolated from the cost of 60ah cells at $94 each I was going to buy but I could never actually get them until way too late to take a payment.) for each cell after everything was tacked on so but I wouldnt have to wait for 45 days to get the cells and the warranty is much better.
So cost is the same or a few bucks more but its in stock and shipped quickly. The company is powerforceusa.com the guy I delt with is named
Lorne Hatchard. I haven't had a chance to actually test them aside from charging them as due to a mess up I didnt get interconnects which they shipped out later.
From what they told me (but I have no way to verify) they do military contracts for the government so things have to be just so on their cells. They ended up giving me a special mix on the cells (they say) that is supposed to be able to handle colder climates better (I'm in detroit.) I actually am the first that they know of car conversion using their cells. All in all the cells seem very well put together. Here is a spec sheet on them: I have discharge curves and other graphs, but I cant post them since they are part of a word doc. If you want me to email them to you just drop me a PM.
Hawk LiFePO4
Specifications of 3.2v100ah
CONTENTS
1. SPECIFICATIONS .................................................. ............................... 3
2. CHARACTERISTIC CURVES............................................ ........................ 3
3.0 CHARACTERISTICS................................... ........................................... 4
3.1 ELECTRO-CHEMICAL CHARACTERISTIC.................................... ............ 4
3.2 SAFETY CHARACTERISTIC.................................... ............................... 5
3.3 ADAPTATION TO ENVIRONMENT CHARACTERISTIC............................ 7
4. INDICATIONS ON BATTERY PACK.............................................. ............ 9
5. WARNINGS AND CAUTIONS IN USING THE BATTERY............................. 9
6. OTHERS............................................ ................................................. 10
7. AMENDMENT OF THIS SPECIFICATION..................................... .......... 10
Model
3.2V/100AH
Case Material
Plastic Case
Typical Capacity
100Ah
Minimal Capacity
99.5Ah
Nominal Voltage
3.3V
Max. Charge Voltage
3.85V
Discharge Cut-off Voltage
2.0V
Max. Charge Current
1 C5A
Max. Discharge Current/Peak
3 C5A/ 8C
Battery Size
280*160*70mm
Weight (Approx.)
≤3.5Kg
Impedance（Max, at 1000Hz.）
≤1.3mΩ (charged status)
Charge Method
(CC/CV)
Standard
0.2 C5A×7.5hrs
Quick
1C5A×2.5hrs.
Operating Temperature
Charge
0℃～45℃
32oF～113oF
Discharge
-20℃～60℃
-4oF～140oF
Storage
-20℃～45℃
-4oF～113oF
1
Took the lifepo4 plunge
. I have more of a write up on my blog not too much info so far since they haven't been mounted in the car yet even. Its from a different company here in the usa that I haven't really heard anyone talk with. But after many long conversations with them I decided to take the plunge. I will update the 
. There are definitely lanes I have to avoid here. I'm working on on packaging for my LiFePO4 array that is based on Headway cylindrical cells. Rubberizing the battery box is a major concern for me.
Linear Mode
