Poll Questions and Answers

1. Which chemical may demonstrate "High Load" issues? Nickel Cadmium - Press Negative, Nickel Metal Hydride, Lithium Ion?

   1. High Load Concerns Voiced by Clients about All Brands and addressed by Rathbone Energy

2. If you could purchase a lithium ion battery that gave you +/- 1000 charge - discharge cycles over the average 500 charge discharge cycles available in Rathbone Lithium Ion Battery Packs today, and would charge in 15 minutes instead of at least two hours, how much more would you be willing to pay.  Lower grade cells and Chinese cells offer < 200 Discharge cycles. Answer: N/A

3. Current lithium ion technology allows an average 500 charge - discharge cycles and at least a two hour charge rate. Would you pay more for the same battery if it delivered up to 1000 charge - discharge cycles and charged in 15 minutes?  Answer: N/A
4. In extreme weather temperatures, which battery chemical, you believe, stands up best?  

   1. Correct Answer: Nickel Cadmium Sintered Positive Electrode, Rapid Charge manufactured by Panasonic, Saft, and Sanyo

   2. Nickel Metal Hydride and Nickel Cadmium Press Negative are equivalent

   3. Lithium Ion

   4. Lithium Ion Battery Information

   5. Battery Cells

   6. See Note in item # 6 below.

5. When buying a new charger, what options are most important to you?  Answer: N/A
   1. Versatility and mount system
   2. Versatility and battery chemistry
   3. Being expandable and upgradeable
   4. Being American Made
6. When contaminants in a lithium ion cell pierce the separator causing the cell to short, how long does it take for the thermal runaway temperature to reach several hundred degrees Celsius causing a chain thermal reaction in neighboring cells?
   1. Correct Answer: Less than one second
   2. Lithium Ion Battery Supporting Information in Detail
   3. Lithium-Ion technology
7. What battery cell chemistry is most durable, most charge discharge cycles?

   1. Correct Answer: Nickel Cadmium Sintered Positive Electrode, Rapid Charge manufactured by Panasonic, Saft, and Sanyo,

      1. Sintered Positive Electrode Technology no longer available

   2. Nickel Metal Hydride and Nickel Cadmium Press Negative are equivalent with 500 discharge cycles

   3. Lithium Ion: 500 Discharge Cycles, more narrow temperature range.

   4. Lithium Ion Battery Information

   5. Battery Cells

   6. Note: Nickel Cadmium Sintered Positive Electrode technology is no longer available leaving nickel cadmium press negative and nickel metal hydride foam press negative in equivalent charge-discharge cycles and durability.  Thus, because of the difference in capacity, we suggest nickel metal hydride over nickel cadmium press negative battery packs.  Using Panasonic or Sanyo battery cells of course.

   7. When you consider that premium Panasonic and Sanyo Lithium Ion and Nickel Metal Hydride battery cells now offer 500 discharge cycles, we have elected to promote the lithium ion battery technology.

8. When buying a new charger, what options are most important to you?

   1. N/A

Thursday, February 26, 2009 11:12:55 AM