2. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW Series Overview JAE May 2014 Battery Connectors for Power Storage

3. Copyright ©2014 ， JAE Electronics, Inc. Confidential Target Application: Energy Storage Battery makers Rechargeable for energy storage usage Energy storage system makers Power drawer Battery rack Microgrid power developers Wind Solar thermal, Photo voltaic Pumped hydro Compressed air Diesel UPS equipment makers

4. Copyright ©2014 ， JAE Electronics, Inc. Confidential The old way, without DW Series… Energy Storage Unit Battery Rack Battery Module Maintenance is slow exhausting inefficient….. Battery Modules Terminals and jumpers

5. Copyright ©2014 ， JAE Electronics, Inc. Confidential No tools needed for mating Easy maintenance Easy replacement Easy monitoring Less labor The DW Series way: easy and efficient! Battery Rack All terminals and jumpers removed One DW connector for each module

6. Copyright ©2014 ， JAE Electronics, Inc. Confidential Receptacle Integrated Signal and Power Connectors Plug Power Signal DW1 DW3 On Battery On Panel DW2 Receptacle Power Signal On Battery On Panel Plug Receptacle Power Signal On Battery On Panel Plug

7. Copyright ©2014 ， JAE Electronics, Inc. Confidential Power and signal contacts in one robust insulator Easy to harness signal contact unit One side floats when mounted for easy mating High-reliability 2-point signal contacts (similar to automotive contacts) Electric shock prevention DW1, 2, 3 Series Overview

8. Copyright ©2014 ， JAE Electronics, Inc. Confidential The DW1 Series Panel side (fixed) Module side 2 Power pins at 500A 20 Signal pins at 2A Floats for easy mating

9. Copyright ©2014 ， JAE Electronics, Inc. Confidential Battery Module Connected by bus-bars or cables Plug Receptacle DW1 Implementation Back panel

10. Copyright ©2014 ， JAE Electronics, Inc. Confidential Receptacle DW1 Integrated Power and Signal Easy to assemble cable harness Plug Separate housing for signals

11. Copyright ©2014 ， JAE Electronics, Inc. Confidential Passes finger test （ φ12mm ） DW1 Safety Guard Cap Electric shock prevention

12. Copyright ©2014 ， JAE Electronics, Inc. Confidential Receptacle Plug DW1 Connector Parts Plug Signal connector Receptacle Signal connector Signal socket contact Shoulder bolts (for floating) Signal pin contact

13. Copyright ©2014 ， JAE Electronics, Inc. Confidential The DW2 Series Panel side (fixed) Module side 2 Power pins at 200A 20 Signal pins at 2A Floats for easy mating

14. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW2 Battery Side Connector Battery Module Battery Module Interior Signal Cable Bus-bar connecting to batteries Connector Mounting Panel Back of Connector Power Contacts Cells Battery Module Exterior Battery Bus-bar Signal Connector Unit Air Clearance ： 14mm Creepage Distance ： 25.4mm Connector Mounting Panel Power Contact Front of Connector

15. Copyright ©2014 ， JAE Electronics, Inc. Confidential Back Panel Inside DW2 Panel Side Connector Power Line Bus-bars

16. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW2 Safety Back Panel Inside Back Panel Outside Signal Cable Panel Connector Side View Separated high-voltage and signal lines Signal Cable Panel Power Line Bus-bar Power Line Bus-bars

17. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW2 Connector Parts Receptacle Receptacle Signal connector Signal pin Spacer (for floating) Spacer (for floating) Plug Signal connector B Signal connector A Plug Signal socket

18. Copyright ©2014 ， JAE Electronics, Inc. Confidential The DW3 Series Panel side Module side (fixed) Floats for easy mating 2 Power pins at 150A 24 Signal pins at 2A

19. Copyright ©2014 ， JAE Electronics, Inc. Confidential Screw-on bus-bar or crimped terminal 19 inch rack Battery (Size 1U) Panel side 19 inch rack No tools needed for bus-bar and cover DW3 Application Example Easy bus-bar connections

20. Copyright ©2014 ， JAE Electronics, Inc. Confidential Receptacle Signal connector A Signal connector B Shoulder bolts (for floating) Bus-bar cover Signal pin contact Plug Signal connector A Signal connector B Signal socket contact DW3 Connector Parts

21. Copyright ©2014 ， JAE Electronics, Inc. Confidential 100A current Electric shock prevention Keyed to prevent mis-mating Easy connect and unplug The DW4 Series

22. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW4 Application Connect between rows Rack output Between battery modules Generic rack system Rack output Connect between racks

23. Copyright ©2014 ， JAE Electronics, Inc. Confidential Bus-bar Attached by nut DW4 Mounting Multiple mounting orientation Three bosses Positioning Color coded + keyed = no mis-mating

24. Copyright ©2014 ， JAE Electronics, Inc. Confidential DW1 DW3 DW2 DW4

25. Copyright ©2014 ， JAE Electronics, Inc. Confidential