1. Introduction to our offer May 2010
Telecom Batteries
Introduction to our offer
May 2010

2. The main challenges for Batteries
Why are Batteries failing so early in many countries ?
Exposure
Typical Problems
Solutions
Battery Performance
Low cost batteries have extremely low performance at high temperature and/or in cycling conditions. (typically ¼)
Select right batteries depending on temperature and grid conditions .
High Ambient Temperature
Both Battery design life and Cycle life are reduced (Typ 50% at 30-35C)
Temp Controlled Storage and Installation in Cooling Cabinet
Repeated Power Outages
Battery does not have time to recharge due to Repeated Cycles.State of Charge will decline and Batteries will dry out and fail.
Use New Battery can fast recharge or operate in partial state of charge
OverCharge
Incorrect rectifer settings (ie Boost) can significantly shorten battery life.
Battery is overheated (risk of Thermal runaway/ leaking) Design life reduced to 1/5.
Review Rectifier settings or use Float Voltage recharge
3 Outperforming Solutions
By 2010, 74% of mobile subscribers will live in emerging economies, and while they will only contribute 40% of global revenue (due to lower average revenue per user), they are among the most profitable given the lower cost of serving them
Of the 30 fastest-growing telecom markets
10 are in Africa and the Middle East
8 are in Emerging Asia
71% will come from parts of the world with urbanization levels below 50%
SiteStar:
10oC increase reduces life to half
Long service life, low maintenance top priorityt to reduce costs
Unique cooling technology – from the best
BlueStar
Grid power can be disabled up to 40% of day, on and off
Frequent power outages (charging cycles) kills battery life
BlueStar handles 3 times as many cycles than standard batteries
BlueStar recharges 5 times faster than standard batteries
GreenGiant:
Diesel generator traditionally main power source
Only 1,500 base stations worldwide are powered by at least one form of renewable energy
Estimated that 500,000 new base stations will be deployed in the next 5 years.
Of these at least 150,000 are likely to be suitable for solutions like GreenGiant 2

3. Electric AC Grids drive needs for different batteries
Stable AC Grids
Float Battery
No AC Grid
Deep Cycling Battery
Very Unstable Grids
PSOC Cycling Battery
Source: NASA GSFC
40% of the worlds population lives with no electricity or with unstable electric grids

4. Telecom Products Range
AGM
Red Technology
AGM
Silver Technology
AGM
Blue Technology
OPZV
Solar Technology
15 years Design float Life
Pure Lead Technology
Specially design for Stable grid
Range from 50Ah to 180Ah
10 years Design float Life
High Cyclic performance
Range : 13Ah – 170Ah
PSOC Cyclic Performance
Specially Designed for
Unstable Grid
Range 84Ah-142Ah
Deep Cycle Performance
Designed for Off grid
Range : 200Ah-2000Ah
Since NorthStar has been developing a Complete range of Telecom batteries based on a superior Technology.
NorthStar products are now recognized as best in class performance batteries and are now used in thousands of Telecom sites in more than 120 Countries in the world.
The recent launch of Blue Technology has been used to develop new product that meets the harsh requirements of the emergent countries.
Stable Grid
Unstable Grid
Off Grid

5. NorthStar Superior Technology
Thin-plates = more plates per cell = increased surface area
Minimal spacing between plates, typically <1mm
Very low internal resistance, hence:
High volumetric power density
High gravimetric power density
Rapid recharge capability (no current limit)
Superior Low Temperature Performance
Very high pack compression
High Cycling Capability
NorthStar PPO Plastic Technology
Designed for long and reliable life in any condition
Premium Plastic
Standard Plastics
NorthStar PPO
PC/ABS
ABS PP
Halogen free V0
Yes No
High temp (65°C) sustainability
Ability to be left beyond end-of-life without degrading
No 
Ability to maintain high pack compression with minimum deflection
*****
****
*** *
Material cost **

6. NSB Red Technology
NSB Red Star TechnologyTM using Pure Lead has been developed to provide exceptionally long float life for telecommunication applications under stable AC grid conditions.
Design float life of 20°C 2.27VPC
High energy density
Non-halogenated V0 plastic container and lid
Stable up to 65°C
Twin venting port
Available Q4 2010
Dimensions
Capacity /Ah
Height /mm
Width /mm
Depth /mm
NSB60 Red
263
108
287 60
NSB92 Red
264
396 92
NSB100 Red
100
NSB100X Red
110
520
NSB150 Red
320
125
283
150
NSB180 Red
560
180

7. NSB Silver Technology Patented Silver Alloy
Increased Life under Float conditions
Higher Temperature Performance +65C
Higher Cycling Capabilities
Reduced grid corrosion rate
10 years Design float Life
Superior Cycling Performance
12V Front Terminal V Top Terminal
NSB 40 FT . NSB13
NSB 60 FT NSB40
NSB 90 FT . NSB 75
NSB 100 FT . NSB90
NSB 110 FT . NSB125
NSB 155 FT
NSB 170 FT
NorthStar Battery has recognized the need to develop an advanced alloy for improved performance of battery during and beyond service life in harsh environnments

8. NSB Blue Technology – Designed for Unstable Grid
Easy and Safe Set up
No Boost Voltage required - No Full recharge required after each cycle - PSOC Capable
Faster recharge
High cyclic capabilities - Up to 2500 cycles at 25% DOD
How To manage Unstable Grid ?
Increase recharge power or use “controlled” boost voltages is not a practical solution. It is difficult to implement without risk of reducing battery life (Thermal runaway , over charge)
There is a need for optimized lead technology with the ability to support Partial state of charge (PSOC) at a very high energy efficency
Ability to operate in a low State of charge for extended periods .
NSB 100 BLUE and NSB170 BLUE now available
Up 2 to 3 Times more cycles than NSB Standard .

9. NSB Blue Technology – Designed for Unstable Grid
Fastest Float Recharge
Standard AGM
22-hour recharge
NBS Blue
2-hour recharge
Blue Technology can repeatedly cycle in lower State of charge window utilizing full rectifier power
Standard AGM needs to be recharged to >103%

10. Unstable Grid Field Trial - Bangladesh
Unstable AC Grid Outages
In these conditions, Standard AGM will fail after few months. The Blue Battery has completed over 1800 cycles in 1 year of operation and is still working
Increase in battery life
Simulated laboratory cycling confirms the large increase in cycle life with the Blue Battery

11. NSB Solar – OPZV Technology
Designed to DIN 40742
IEC Solar tested
20 years life 20°C
Horizontal and Vertical operation
Maintenance Free
High Capacity Density and Cyclic Capabilities
Halogen free VO container material
Operational temperature -40°C - +55°C
Panzerpole touch protected DIN 40050
Degassing system
Free of leakage
Low self discharge
Recyclable
Extra step for horizontal cells during manufacturing
100% quality control:
Pressure tightness test for each single cell

12. Where and when to use the NSB Technology10
100
Silver
Blue
Solar
(hours per month)
AC Grid outages
300
720
Off Grid
Unstable Grid
Stable Grid
High Cyclic
PSOC Cyclic
Standby

13. NorthStar.
More than just a battery company.