TELEDYNE BATTERY PRODUCTS - gillbatteries.com

G-243

Gill DRY-CHARGE MAINTENANCE MANUAL

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G-244

Gill DRY-CHARGE MAINTENANCE MANUAL

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G-245

Gill DRY-CHARGE MAINTENANCE MANUAL

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Q01-1120 Revision J 7-8-15 Page 48 of 62 Teledyne Battery Products

G-246

Gill DRY-CHARGE MAINTENANCE MANUAL

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Q01-1120 Revision J 7-8-15 Page 49 of 62 Teledyne Battery Products

G-247

Gill DRY-CHARGE MAINTENANCE MANUAL

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Q01-1120 Revision J 7-8-15 Page 50 of 62 Teledyne Battery Products

G-6381E/C

Gill DRY-CHARGE MAINTENANCE MANUAL

G-6381E G-6381C Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

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G-639E/C

Gill DRY-CHARGE MAINTENANCE MANUAL

G-639E G-639C Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

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Q01-1120 Revision J 7-8-15 Page 52 of 62 Teledyne Battery Products

G-638E/C

Gill DRY-CHARGE MAINTENANCE MANUAL

G-638E G-638C Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

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Q01-1120 Revision J 7-8-15 Page 53 of 62 Teledyne Battery Products

G-640E/C

Gill DRY-CHARGE MAINTENANCE MANUAL

G-640E G-640C Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

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G-641

Gill DRY-CHARGE MAINTENANCE MANUAL

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GE-50C

Gill DRY-CHARGE MAINTENANCE MANUAL

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GE-51C

Gill DRY-CHARGE MAINTENANCE MANUAL

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GE-54C

Gill DRY-CHARGE MAINTENANCE MANUAL

GE-54C Performance Data Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

Run time End Volts Test Watts Amps Capacity Energy Weight Electrolyte
Temperature (Ah) (Wh) (lb) Volume
Per Cell 2,544 106 (quarts)
(°C) 384 16 2 42
240 10 8 192
60 sec 1.2 -18 19 0.8 10 240 34 3
30 min. 1.67 24 16 384
60 min.
20 hr.

GE-54C Performance at 24°C

100 3600 16
384 10
60 sec 240 0.8
0.5 19.2
1
20 www.gillbatteries.com

10

Amperes

1

0.1 1 10 100 800.456.0070
0.1 Hours to 1.67 VPC at 24°C

Q01-1120 Revision J 7-8-15 Page 58 of 62 Teledyne Battery Products

Section 13Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

Gill DRY-CHARGE MAINTENANCE MANUAL

APPENDIX B

Using a Hydrometer
Hydrometers are used to determine specific gravity of liquids. Specific gravity is a ratio of the
density of the substance measured versus the density of pure water at the same temperature.
Thus specific gravity will vary with temperature. Note Figure 5.
A hydrometer consists of a small sealed glass tube, weighted at one end to make it float in an
upright position in the fluid being measured. See Figure 4.

Figure 4
Hydrometer

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Q01-1120 Revision J 7-8-15 Page 59 of 62 Teledyne Battery Products

Gill DRY-CHARGE MAINTENANCE MANUAL

The liquid being measured will be pulled in the barrel such that the hydrometer floats on the Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS
liquid (without touching the stopper at the base of the rubber bulb). The meniscus will be
convex and the actual gravity reading will be taken at the base of the meniscus.

Verify the resolution (value per increment on the bulb of the hydrometer) on the hydrometer
scale and use appropriate temperature correction as indicated on the scale, Figure 5.

Figure 5
Temperature Correction Scale

TEMPERATU RE CORRECTION U S IN G A H YDROMETER
CALIBRATED FOR ZERO CORRECTION AT 8 0 0 F

600F 700F 800F 900F 1000F 1100F
-8 -4 0 +4 +8 +12

S U BTRACT FROM READIN G ADD TO READIN G

Temperature Correction www.gillbatteries.com

When using an 80/80 hydrometer, use the correction values indicated in Figure 5. As the 800.456.0070
electrolyte cools down, the measured specific gravity will increase, and vice versa when the
electrolyte warms up.

The true specific gravity is subsequently determined by applying the appropriate correction
for temperature. This correction is calculated as follows:

If the measured hydrometer reading (or specific gravity) is 1.275 and the temperature
of the electrolyte is 600F, then you would subtract 8 points to obtain the actual specific
gravity:

1.275 - 0.008 = 1.267

Similarly, if the temperature were 1100F, then you would add 12 points:

1.275 + 0.012 = 1.287

Q01-1120 Revision J 7-8-15 Page 60 of 62 Teledyne Battery Products

Section 14

Gill DRY-CHARGE MAINTENANCE MANUAL

APPENDIX C

Mixing Electrolyte Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

Sulfuric acid is a very strong mineral acid. Safety precautions must be adhered to at ALL times.
Please do not deviate from these methods.

Raw Materials
− Concentrated sulfuric acid Specific Gravity 1.835 or 1.400
− Clean water (prefer distilled or de-ionized)

Tools/Equipment
− Plastic (non-nylon) mixing tub/tank, with pour spout
− Stirring material (plastic ladles)
− Hydrometer (to read 1.100 to 1.300 s.g. units
− Thermometer
− Wrap-around safety goggles
− Acid resistant gloves
− Plastic (NOT NYLON) or Glass container for diluted electrolyte

Procedure

1. WARNING www.gillbatteries.com
NEVER ADD WATER TO CONCENTRATED SULFURIC ACID. ALWAYS ADD SULFURIC ACID
TO WATER – SINCE THIS ELIMINATES “LOCALIZED” REACTIONS BETWEEN THE ACID AND
WATER. SULFURIC ACID REACTS VERY VIGOROUSLY WITH WATER AND WILL GENERATE
CONSIDERABLE HEAT.

2. Slowly add one part (by volume, say one quart), to 2.7 parts (or 2.7 quarts) of clean – de- 800.456.0070
ionized or distilled water. Stir continuously with a plastic or glass stirrer. One can mix any
amount of electrolyte by varying the initial amounts of acid and water in the same ratio (1
part acid to 2.7 parts water)

3. If you do not have concentrated sulfuric acid, lower gravities of electrolyte, such as 1.400
s.g. may also be used.

4. For 1.400 s.g. electrolyte, the mix ratio will be 1 part acid to 0.46 parts of water.

5. Wait for electrolyte to cool down to ambient conditions before using.

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Section 15Premium Aircraft Batteries TELEDYNE BATTERY PRODUCTS

Gill DRY-CHARGE MAINTENANCE MANUAL

APPENDIX D

Latest activation instructions are included with the battery. A copy may be obtained from
Teledyne Battery Products through the website: www.gillbatteries.com

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