
Click the image above for a Free Presentation
April 28th 2008
Battery Restoration, Part 1
Batteries are vital in our society, an upper level in the scale of ability for humankind. They give us the power to store and manipulate energy. They are everywhere from...
Read More
Feb. 25th 2008
Is Biofuel Craze a Mirage?
In September 2007, Lewis Smith, Environment Reporter for Times Online, warned us that we may need to jump off the biofuel...
Read More
Jun. 10th 2007
Help With Batteries
Batteries are designed to help you. They store
energy for your use; they...
Read More
January 7th, 2007
Stretching Your Golf Cart Battery Dollar
Battery prices are rising! To save money, a good strategy
is to make batteries last as long...
Read More
This page is a technical page. You should have some experience as a mechanic and in handling batteries before you attempt to apply the data on this page.
If you don't have the experience, ask a friend who does to help you, or as a last resort, take your car to a garage and have it done.
WARNING!
BATTERY ACID IS VERY DANGEROUS IF MISHANDLED. ALWAYS WEAR SAFETY GOGGLES WHEN WORKING WITH BATTERY ACID. ALWAYS WASH UP WITH HOT SOAP AND WATER WHEN YOU ARE DONE. IF YOU SPILL ANY BATTERY ACID ON YOUR CLOTHES, WASH THEM IMMEDIATELY WITH HOT SOAPY WATER OR THEY WILL HAVE HOLES IN THEM THE NEXT DAY. BE SURE TO BE IN A WELL VENTILATED AREA.
You will need the following equipment to do the tests:
You should start the test before using BLS for the first time.
| Digital Voltmeter Open Circuit Voltage |
Approximate State-of-Charge at 80°F (26.7°C) |
Hydrometer Average Cell Specific Gravity |
Electrolyte Freeze Point |
| 12.65 | 100% | 1.265 | -77°F (-67°C) |
| 12.45 | 75% | 1.225 | -35°F (-37°C) |
| 12.24 | 50% | 1.190 | -10°F (-23°C) |
| 12.06 | 25% | 1.155 | 15°F (-9°C) |
| 11.89 or less | DISCHARGED | 1.120 or less | 20°F (-7°C) |
| Digital Voltmeter Open Circuit Voltage 6V-8V |
Approximate State-of-Charge at 80°F (26.7°C) |
Hydrometer Average Cell Specific Gravity |
Electrolyte Freeze Point |
| 6.33 - 8.55 | 100% | 1.265 | -77°F (-67°C) |
| 6.23 - 8.30 | 75% | 1.225 | -35°F (-37°C) |
| 6.12 - 8.16 | 50% | 1.190 | -10°F (-23°C) |
| 6.03 - 8.04 | 25% | 1.155 | 15°F (-9°C) |
| 5.95 - 8.00 or less | DISCHARGED | 1.120 or less | 20°F (-7°C) |