• Variable power output • Accurate fuel gauge • High reliability • Longer life • Longer range Software Configurable Battery More accurate state of charge Standard (Enables reduced controller costs) Variable power output Standard Fixed Power Output Variable Power Output Power Time Power Time Lower capital cost per cycle C h a r g e D i s c h a r g e 12% Less C h a r g e D i s c h a r g e Standard Short term power boost Standard Normal BO O S T Normal Boost PWR PWR Lossless cell balancing 100 200 300 400 500 20% 60% 40% 100% 80% With cell balancing No cell balancing Available capacity Battery Cycles Increased capacity (Range) Standard Increased Range >14% Increased cycle life Time 80% 90% 100% 100% >30% Extra Cycles EOL Standard Cell Ageing Rate Immunity to cell failure Zero Output Standard Full Output Switchable Spare Features and Benefits • • • • • • • • Standard Does not need a special charger • xxxxx-#### xxxxx-#### [email protected] The Boathouse, Silversands, Hawkcraig Road, Aberdour, Fife, KY3 0TZ, SCOTLAND, UK WWW .CHEEVC.COM Increase in Cycle Life Due to Rest Periods 48 Samples for each test of 300 Cycles with charge rate 0.5C (CC-CV) and discharge rate 1.0C 0 1 2 3 4 5 6 7 1360 1410 1460 1510 1560 1610 1660 1710 1760 1810 1860 1910 1960 2010 2060 2110 2160 2210 2260 2310 2360 2410 2460 Final Capacity with Rest Periods (EOL) 0 2 4 6 8 10 12 14 1360 1410 1460 1510 1560 1610 1660 1710 1760 1810 1860 1910 1960 2010 2060 2110 2160 2210 2260 2310 2360 2410 2460 Ini al Capacity with Rest Periods (BOL) 0 0.5 1 1.5 2 2.5 3 3.5 4 1360 1410 1460 1510 1560 1610 1660 1710 1760 1810 1860 1910 1960 2010 2060 2110 2160 2210 2260 2310 2360 2410 2460 Standard Cycle Final Capacity (EOL) 0 1 2 3 4 5 6 7 8 9 10 1360 1410 1460 1510 1560 1610 1660 1710 1760 1810 1860 1910 1960 2010 2060 2110 2160 2210 2260 2310 2360 2410 2460 Standard Cycle Ini al Capacity (BOL) >20% Improvement 79% of Cells Exceed EOL Specifications 44% of Cells Exceed EOL Specifications Manufacturer’ s EOL Specification mAh mAh Number of Cells The redundunt cell is bypassed and rested while remaining cells carry the load A switching matrix provides controlled access to individual cells and an extra cell in the battery string provides redundancy and increases charge capacity Sequential cycling rests each cell in turn so that all cells in the battery age at the same rate The rest periods reduce stress on the cells, resulting in increased battery lifetime • • • • + plus + plus + plus + plus + plus + plus + plus + plus + plus