1. Smart battery technology for a global environment 775-852-5300 5470 Louie Lane #104 Reno, Nevada 89511

2. Topics  Life expectancy  Outside cabinets  Temperatures  Maintenance  Alexis Ni-MH Batteries  Battery Monitoring Maintenance Communications Systems

3. Life Expectancy  The life expectancy of lead acid batteries is 12 to 72 months in exposed metal cabinets.  They require site maintenance.  As communication networks evolve, Nickel Metal Hydride (NiMH) batteries will provide:  Long lasting back up power (up to 15 years)  Improve performance in varied environments  Capital savings, expense savings, improve customer service.  Reliability against battery failure.

4. Outside Cabinets  Equipment installed in outside cabinets for the purpose of reducing loop lengths to customers.  Having shorter loop lengths brings less attenuation, higher bandwidth speeds, better service.  Basic telephone service must work in event of commercial power outages.

5. Outside Cabinets  The initial installations used Sealed Lead Acid (SLA) batteries.  Today they have Valve Regulated Lead Acid (VRLA) batteries.  SLA and VRLA generic terms that describe the battery construction.

6. Temperatures  Internal temperatures in a cabinet can reach120°F or higher.  SLA nor VRLA are not capable of withstanding extreme temperatures for long periods of time.  Extreme temperatures shorten Lead Acid batteries life expectancy and increases outages due to battery failure.

7. Temperatures  VRLA manufactures promote a ten year life expectancy but only if maintained at 65°F to 75°F.  Through out the continental US cabinets will experience temperatures far above 80°F.

8. Maintenance  SLA and VRLA batteries were assumed to require no maintenance, however they should be tested under load at least twice a year.  Estimated time for a technician to perform warranty maintenance is four hours per site.  Technician loaded labor rate may reach $117.75 per hour.  Twice a year would cost $942 per site.

9. Maintenance  For a company with 4,000 remote sites in the US, minimum maintenance cost could be $37,680,000 over a ten year period.  An excerpt from one manufactures warranty.."If ambient temp is 80°F to 90°F then warranty period is two years only. No warranty will be in effect with temps over 90°F."  For cabinet temperatures reaching 120°F. Battery life span 3.5 to 3.6 years.

10. Maintenance  The average loaded cost is $3,085.30 for 48v60a systems.  For a ten year period $8,814.70.  Should the inside cabinet exceed 120°F, the average life span is 2.0 to 2.5 years. At an average loaded cost of $3,624.10 for a 48v60A system.  For a ten year period cost could range from $13,938.29 to $18,120.50.

11. Alexis Ni-MH Batteries  Function in all environments, regardless of their exposure to extreme temperatures, warranted to operate from -13°F to 167°F.  Warranty covers full eight years with four additional years of pro-rated warranty.  No reference to maintaining required temperatures.  No field maintenance once installed with our “Battery Monitoring & Maintenance Communication System (BMMCS)”

12. Alexis Ni-MH Batteries  No hazardous materials and 100% recyclable.  Our batteries have integrated processing, monitoring capability.  Give the end-user the reliability of knowing when battery is functioning correctly or incorrectly without dispatching or sending a technician.  Provides online critical data including how many hours of backup power remain at current draw, when using the BMMCS.

13. Ni-MH Battery 30Ah/24V 60Ah/12V Special Features: Ni-MH battery 100% environment protection Cells UL 1642 Listed E#MH29437 Warranty: Eight year full replacement: Four year limited replacement after eight. Year 1 80% replacement value Year 2 60% replacement value Year 3 40% replacement value Year 4 20% replacement value Warranty subject to conditions outlined in warranty documentation.

14. BMMCS  Battery Monitoring Maintenance Communication Systems (BMMCS).  It allows the key battery data to be accessed locally or remotely.  The end-user will be able to access data from each individual battery at a remote site.  The BMMCS unit will also provide alarm signaling for rectifier unit fault and battery array fault.

15. Battery Monitoring Maintenance Communications Systems Features: Short circuit, overcharge discharge, and temperature protection. Load balancing between cells. Self cycling for high rate capacity and long life. Eliminates costly maintenance expenses.