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Surrette Battery Co Ltd

Flooded Lead-Acid Battery Presentation. Surrette Battery Co Ltd. 1. Agenda. Background Battery Basics What Effects Performance? Diagnosis / Troubleshooting (D&T) Product Line Review Questions. Surrette Battery Co Ltd. 2. Company Background. Established 1939

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Surrette Battery Co Ltd

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  1. Flooded Lead-Acid Battery Presentation Surrette Battery Co Ltd 1

  2. Agenda • Background • Battery Basics • What Effects Performance? • Diagnosis / Troubleshooting (D&T) • Product Line Review • Questions Surrette Battery Co Ltd 2

  3. Company Background • Established 1939 • Strictly flooded cell, deep-cycle • ISO 9001:2000 registered • Geothermal / Back-up system • RE represents 44-52% of production • Distributed via North America’s leading Renewable Energy Companies Surrette Battery Co Ltd 3

  4. Off-Grid / Battery Back-Up System HomePower Issue 104 Surrette Battery Co Ltd 4

  5. Battery Basics How they work; Discharge - 2e Pb + PbO2 + 2 H2SO42 PbSO4 + 2 H2O Charge +2e Surrette Battery Co Ltd 5

  6. Positive Plate Construction Active Material Glass Mat Poly Envelope Surrette Battery Co Ltd 6

  7. Group Construction – CS-21 Post Strap / Bar Positive Ear Surrette Battery Co Ltd 7

  8. Group Construction – CS-21 Post Moss Guard Strap Pos Ear Neg Ear Surrette Battery Co Ltd 8

  9. Group Construction – CS-21 Neg Strap Post Moss Guard Pos Strap Surrette Battery Co Ltd 9

  10. What Effects Performance? Capacity: Measured in Amp Hours (AH) but based on discharge rate, S-460 • 460AH @ 100 Hr-rate (460AH/100H = 4.6A) or 350AH @ 20 Hr-rate (350AH /20H = 17.5A) Effected by: • Density of oxide • Temp (104% 40C, 75% -10C) • Strength of acid (+5% for 15 points) Surrette Battery Co Ltd 10

  11. Surrette Battery Co Ltd 11

  12. What Effects Performance? Cycle-life / Durability • Thickness of plates, matting, oxide density Effected by: • Depth of Discharge (DOD) • Refers to amount of energy removed from the battery. Surrette Battery Co Ltd 12

  13. Surrette Battery Co Ltd 13

  14. What Effects Performance? Maintenance • Liquid reserve • Antimony %, • Recombination / Condenser Caps, Reliability • Separator • Welds & Post-burns Surrette Battery Co Ltd 14

  15. D&T State of Charge SOC: Can be determined by measuring the weight of the acid (specific gravity) or voltage. Concerns: SG will lag on recharging due to mixing. Voltage must be open circuit and rested. Surrette Battery Co Ltd 15

  16. Surrette Battery Co Ltd D&T SOC – Specific Gravity % ChargedSpecific Gravity 100% 1.255 – 1.275 75% 1.215 – 1.235 50% 1.200 – 1.180 25% 1.165–1.155 0% 1.130-1.110 *Refer to Bulletin 606

  17. % Charged Single Cell 12V 24V 32V 48V OPEN CELL 100% 2.10 12.60 25.20 33.60 50.40 UNDER LOAD 75% 2.01 12.06 24.12 32.16 48.24 UNDER LOAD 50% 1.93 11.58 23.16 30.88 46.32 UNDER LOAD 25% 1.84 11.04 22.08 29.44 44.16 UNDER LOAD 0% 1.75 10.50 21.00 28.00 42.00 D&T SOC- Voltage Surrette Battery Co Ltd 17

  18. D&T Charging Time • Determine bank size (350AH) • Estimate DOD (50%) • Calculate required AH (50% x 350AH = 175AH) • Compensate for charge inefficiency (175AH x 115% = 200AH) • Divide by charge rate (200AH / 25A = 8 Hrs) Surrette Battery Co Ltd 18

  19. D&T Voltage Settings (Volts per cell)12V24V48V Equalization 2.58 -2.67(max) 15.5-16.0 31.0-32.061.9-64.1 Bulk 2.37-2.45 (max) 14.2-14.7 28.4-29.456.9-58.8 Absorption 2.37-2.45 (max) 14.2-14.7 28.4-29.456.9-58.8 Float 2.20-2.23 (max) 13.2-13.4 26.4-26.852.8-53.5 Refer to Bulletin 614 Surrette Battery Co Ltd 19

  20. D&T Charge Acceptance Surrette Battery Co Ltd 20

  21. D&TSulphation • Measure & record SG • Charge bank • Note time to reach “Bulk Voltage” • Measure & record SG • All low = sulphation problem • Equalize • (2.58-2.67VPC) Surrette Battery Co Ltd 21

  22. D&TSulphationPreventative Measures • Keep SG records • Observe trends • Extend “Absorb time” • Get bank to 100%, once per month • May require frequent equalization Surrette Battery Co Ltd 22

  23. D&T Equalize Time • Determine bank size (1000AH) • Estimate DOD (20%) • Calculate required AH (20% x 1000AH = 200AH) • Compensate for charge inefficiency (200AH x 115% = 230AH) • Divide by charge rate (230AH / 50A = 4.6 Hrs) Surrette Battery Co Ltd 23

  24. D&TA Bad Cell • Measure & record V & SG • Charge bank • Measure & record V & SG again • Excessive water loss in all but one • No activity in one cell • One low cell (>30 pnts) = CONCERN • Replace cell / battery (if needed) • Charge bank Surrette Battery Co Ltd 24

  25. D&T Dry Charge Activation • Inspect / fill with approved battery grade electrolyte (1.265 s.g.) • Allow 2-4 hr soak time (>temp, < s.g.) • Check polarity • Charge at 15% capacity (20 hr) to 2.4 VPC (max temp 125ºF / 51.8ºC) • Top-up with electrolyte • Replace caps, clean, check voltage • See Bulletin 600 for full details Surrette Battery Co Ltd 25

  26. D&T Initial Activation • Check polarity • Measure specific gravity & inspect level • Initial charge; 2.58 – 2.68VPC • ▲ Plate thickness / density = ▲ Resistance • Lower initial capacity • Inspect liquid levels • Notice level rises while charging Surrette Battery Co Ltd 26

  27. D&TCorrect Acid Level Surrette Battery Co Ltd 27

  28. Features & Benefits - Solar Series • Specific design • Higher cube weights, dual-container • Broad product line • 80 – 3500AH • Industry leading warranty • 7 & 10 yr • Well positioned • Distributor support • Freight policy • Direct ship model Surrette Battery Co Ltd 28

  29. Series 4000 • Models: • S 460 • 350 AH (20 hour) • 460 AH (100 hour) • S 530 • 400 AH (20 hour) • 530 AH (100 hour) Surrette Battery Co Ltd 29

  30. Series 4000 • Up to 12 years of operational life. • 6, 8, 12 volt configurations. • 1200 cycles (50% DOD) • 7-year warranty. • S-460 & S-530 most popular models. • Max bank 1060AH, 48V. Surrette Battery Co Ltd 30

  31. Features & Benefits – Series 4000 • Competitive Price • Well Recognized • Plate Thickness • High Capacity / Cycle Life • Large Liquid Reserve • Great Warranty Surrette Battery Co Ltd 31

  32. Features & Benefits – Series 4000 Limitations: • Easy to Cost Compare – hinders margins. • Too many per bank. • Large amount of cells to maintain. • Too many wire connections. • Reduced charging efficiency. Surrette Battery Co Ltd 32

  33. Series 5000 • Most Popular Models • 2-KS-33PS • 4-KS-21PS • 4-KS-25PS • 6-CS-25PS Surrette Battery Co Ltd 33

  34. Series 5000 • Eliminates stray current & stray voltage. • Up to 20 years of operational life. • 2, 4, 6, 8 & 12 volt configurations. • 3300 cycles (50% DOD) • 550AH – 3,450AH Surrette Battery Co Ltd 34

  35. Series 5000- Features & Benefits • Advantages over steel trays / Ind. Cells • Eliminates stray current & stray voltage. • Durability • Bolt-together connections • Up to 20 years of operational life. • 2, 4, 6, 8 & 12 volt configurations. • 3300 cycles (50% DOD). • 550AH – 3450AH Surrette Battery Co Ltd 35

  36. Series 5000 • Higher revenue example • 48V, 800AH • 16 x S-530 = $4,680.00 • Est. Margin @ 25% ($936.00) • Cost per cycle = $3.65 • Cost per year = $585.00 • 8 x 6-CS-25PS = $8632.00 • Est. Margin @ 30% ($1992.00) • Cost per cycle = $2.61 • Cost per year = $431.60 Surrette Battery Co Ltd 36

  37. Series 5000 – New Model • 2-YS-31 PS • Modular 2-volt • 2,430AH (20 hr) • 3,435AH (100 hr) • 285 lb (wet) • 200 lb (dry) Surrette Battery Co Ltd 37

  38. New Level Indicators Surrette Battery Co Ltd 38

  39. New R+ Recombi Caps 39

  40. New Terminal Boots 40

  41. Questions? Surrette Battery Co Ltd 41

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