Related Manuals for Teledyne 7639-27
Summary of Contents for Teledyne 7639-27
- Page 1 COMPONENT MAINTENANCE MANUAL LT-Valve-Regulated Lead-Acid Batteries Part Numbers Applicable to this CMM 7639-27 7639-30LT 7639-34 7638-36 7638-48P Q01-4000 Rev G December 16, 2016...
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Page 2: Table Of Contents
CONTENTS Section Description Page Revisions ………………………………………………………………………….. Scope ……………………………………………………………………………… Description of Valve-Regulated Lead-Acid batteries ………………………… Definition of Battery Specifications …………………………………………….. State of Charge Vs Voltage …………………………………………………….. Service Instructions ……………………………………………………………… Charging, Constant Potential …………………………………………………… Charging, Constant Current …………………………………………………….. Charging, Float …………………………………………………………………… Charging, Initial …………………………………………………………………… Routine Maintenance …………………………………………………………….. -
Page 3: Revisions
Apr 2, 2014 Added part number 7638-48P Sep 3, 2014 Revised Inspection /Service Period Mar 9, 2016 Revised Flowchart and references to Dec 16, 2016 Capacity checks from 80% to 85% Q01-4000 Rev G Page 1 of 28 Teledyne Battery Products... -
Page 4: Scope
This manual is applicable for the following batteries: 7639-27, 7639-30LT, 7639-34, 7638-36 and 7638-48P. This manual has been written for the purpose of guidance only; consult Teledyne Battery Products (TBP) Technical Support for further information. The CMM will take precedence over all other printed materials regarding respective batteries. - Page 5 These batteries can be operated in any orientation without spilling electrolyte. 3.1.4. The battery consists of twelve cells connected in series internally, making up a 24V battery. These cells are not replaceable. Q01-4000 Rev G Page 3 of 28 Teledyne Battery Products...
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Page 6: Definition Of Battery Specifications
80°F. Available capacity declines as the temperature drops. This decline is primarily related to the state of the electrolyte and easily recoverable once the battery has warmed up sufficiently. Q01-4000 Rev G Page 4 of 28 Teledyne Battery Products... - Page 7 COMPONENT MAINTENANCE MANUAL Q01-4000 Rev G Page 5 of 28 Teledyne Battery Products...
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Page 8: Service Instructions
During these monthly inspections, the battery must be recharged per Section 5.2 and returned to storage. If the storage period has exceeded the time recommended in this section, contact Teledyne Battery Products for disposition. 4.3.4 All batteries returned from service after initial use must be fully charged per Section 5.2 and stored. - Page 9 Constant-Current and/or Constant-Potential charging (see Sections 6.3 and 6.4). If there are any concerns with recharging, please contact Tech Support at Teledyne Battery Products. WARNING ALL VRLA batteries contain sulfuric acid, which is highly corrosive and which can cause serious physical injury if it comes in contact with skin or if inhaled.
- Page 10 28.2V up to 29.0V for 24V batteries and left on until the charge rate drops below 0.5 amperes. At this point, disconnect the charger from its power source first before disconnecting the battery from the charger – to eliminate any sparks. Q01-4000 Rev G Page 8 of 28 Teledyne Battery Products...
- Page 11 26.4V ± 0.2V. See Figure 3 for charger performance. 5.4.2 Teledyne recommends using the GC-024 charger, which is a constant potential charger that will revert to a float charger after the battery has been charged at 28.5V ±...
- Page 12 Inspect battery voltage and reference to Figure 1 to verify state of charge. 5.5.4 For various battery voltages, Table 1 provides the necessary charging and / or conditioning that would be required. 5.5.5 Please contact Teledyne Tech Support if there are any situations that are not clear. Q01-4000 Rev G...
- Page 13 - If the battery passes, recharge it using CP and CC method - If not, repeat CP and CC charge followed by one more discharge. If the battery fails to meet capacity, call Teledyne Tech Support for further direction. Discharge at one-hour rate to 20V (see Appendix A) – then 24V-25.5V...
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Page 14: Routine Maintenance
Figure 4, Battery Maintenance Flow, provides an overview of Battery Maintenance. During this inspection process the following components must be reviewed: 6.2.1 Measure and record the battery voltage. 6.2.2 Charge the battery using Table 2. Q01-4000 Rev G Page 12 of 28 Teledyne Battery Products... -
Page 15: Reconditioning Battery
6.3.2 Charge the battery at constant potential of 28.6V± 0.4V until the charge rate drops to 1A, followed by a constant current charge at 1A for 12 hours. 6.3.3 Repeat the discharge test per Section 6.2.4, followed by a recharge per Section 6.3.2 Q01-4000 Rev G Page 13 of 28 Teledyne Battery Products... -
Page 16: Deep Discharge Recovery
Section 4.3. 6.5.1 If the batteries are stored for two years at recommended temperatures, the batteries can be recharged at constant current of 1A for 120% of the one hour Q01-4000 Rev G Page 14 of 28 Teledyne Battery Products... - Page 17 6.5.2 Conduct a capacity check per Section 6.2. Repeat cycle starting with recharge per 6.3.2. The battery should be at capacity by the end of the second cycle. Call Teledyne Tech Support if is not at capacity. INSPECTION OF CONNECTORS 6.6.1 Before connecting battery to aircraft, ensure the connector sockets have not...
- Page 18 COMPONENT MAINTENANCE MANUAL Q01-4000 Rev G Page 16 of 28 Teledyne Battery Products...
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Page 19: Unscheduled Removals
Section 5.2 should be attempted. Perform a capacity check as outlined in Section 6.2. If the battery fails to provide specified capacity as noted in Table 2, Appendix A, it should be rejected. Q01-4000 Rev G Page 17 of 28 Teledyne Battery Products... -
Page 20: Troubleshooting Guide
Clean and neutralize connections; tighten all Loose connections; corrosion connections Check Cannon or Elcon type connectors for Quick disconnect worn beyond good contact (see 7.2) with Teledyne Go- tolerance. NoGo gauge part number 3600-51. Battery could be shorting under Perform airworthiness test per Section 6.2 Will not hold charge. -
Page 21: Transportation
49 CFR, Chapter 1, Subchapter C, Parts 106 – 180, as determined in: a) US Department of Transportation’s 49CFR, Chapter 1, Part 173.159, paragraph “d” b) IATA/ICAO Packing Instructions 806, Provision A67 Q01-4000 Rev G Page 19 of 28 Teledyne Battery Products... -
Page 22: Recycling
U.S. to accept used lead-acid batteries from customers. The spent batteries collected by retailers are shipped to EPA licensed and regulated facilities for recycling. For additional information, please use the following web address to locate nation-wide recycling facilities: www.batterycouncil.org Q01-4000 Rev G Page 20 of 28 Teledyne Battery Products... - Page 23 Telephone: +33 74 945 985 Battery re-processing. 10.3.3 You can also locate a recycling facility through the following Call2Recycle (a program of Rechargeable Battery Recycling Corporation – RBRC) website: http://www.call2recycle.org/ Q01-4000 Rev G Page 21 of 28 Teledyne Battery Products...
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Page 24: Glossary
Sulfation The product of discharge, lead sulfate, formed on both positive and negative plates. Venting Means for a battery to release the gases it generates during charging. VRLA Valve-Regulated Lead-Acid Q01-4000 Rev G Page 22 of 28 Teledyne Battery Products... -
Page 25: Appendix A
COMPONENT MAINTENANCE MANUAL APPENDIX A Table 3 Type 1 Hour Rate (A) 30 Minute Rate (A) 7639-27 7639-30LT 7639-34 7638-36 7638-48P Q01-4000 Rev G Page 23 of 28 Teledyne Battery Products... - Page 26 COMPONENT MAINTENANCE MANUAL Battery Part Number: 7639-27 Specifications Electrical Performance at Various Temperatures Battery 30 min. 1 hr Ipp @ Ipr @ Ipp @ Ipr @ Ipp @ Ipr @ Ratings Weight (@ 23°C (@ 23°C 23°C 23°C -18°C -18°C -30°C...
- Page 27 -30°C (lb) 1.67 Volts 1.67 Volts per cell) per cell) Watts 1,000 Amps 1,627 1,173 1,180 Capacity (Ah) Energy (Wh) 7639-30LT Performance at 23°C Hours to 1.67 VPC at 23°C Q01-4000 Rev G Page 25 of 28 Teledyne Battery Products...
- Page 28 -18°C -30°C -30°C (lb) 1.67 Volts 1.67 Volts per cell) per cell) Watts 1,100 Amps 1,636 1,168 Capacity (Ah) Energy (Wh) 7639-34 Performance at 23°C Hours to 1.67VPC at 23°C Q01-4000 Rev G Page 26 of 28 Teledyne Battery Products...
- Page 29 (lb) 1.67 Volts 1.67 Volts per cell) per cell) Watts 1,260 Amps 1,958 1,408 1,492 1,128 1,156 Capacity (Ah) Energy (Wh) 7638-36 Performance at 23°C Hours to 1.67VPC at 23°C Q01-4000 Rev G Page 27 of 28 Teledyne Battery Products...
- Page 30 23°C 23°C -18°C -18°C -30°C -30°C (lb) 1.67 Volts 1.67 Volts per cell) per cell) Watts 1,500 Amps 1,500 1,275 1,220 1,020 1,010 Capacity (Ah) Energy (Wh) 1714 1058 62.4 Q01-4000 Rev G Page 28 of 28 Teledyne Battery Products...