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Battery Winter Storage!
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"At Solar Taos, LLC we have been living and running our woodshop with clean,
reliable electric made by the sun and Wind
for over Two decades and we love it and we know you will too!"


Prior to placing batteries into winter storage make certain the electrolyte level is approximately 1.2" (13mm) above the top of the separators. The electrolyte level in very cold batteries will be lower than normal, so let batteries warm to a normal temperature before judging electrolyte levels.

Once the electrolyte level is correct ensure that the batteries are fully charged. Ensure that the battery tops are clean and dry.

See Information Bulletin 501 & 507.

Now the choice is whether to leave the batteries aboard your boat or remove and store in a cool dry area. If the batteries are stored aboard the boat, disconnect the terminal cables. This will prevent premature discharge of the batteries due to a ground in the electrical circuits or failure to turn a piece of electrical equipment off.

If the batteries become discharged, the electrolyte can freeze when stored below +20° F (70° C). Below shows temperatures at which electrolyte, in various states of charge, starts to freeze.

Specific Gravity
(cor. to 80° F/26° C)
Freezing Temp
1.280 -92° F (-69° C)
1.265 -72.3° F (-57.4° C)
1.250 -62° F (-52.2° C)
1.200 -16° F (-26.7° C)
1.150 +5° F (-15° C)
1.100 +19° F (-7.2° C)

A 3/4 charged battery is in no danger of freezing. Therefore, batteries should be kept at least 3/4 charged, especially during winter weather. The frequency of checking batteries depends greatly on temperature. The effect of temperature on self discharge for the average fully charged, new, conventional battery in good condition is approximately as follows:

 

  1. At 100° F (37.8°C) .0025 Sp.Gr. per day
  2. At 80° F (26.7°C) .001 Sp.Gr. per day
  3. At 50° F (10°C) .0003 SG per day

A fully charged battery stored at 80° F (26.7°C) will take 30 days before it self discharges 25 percent. At 50°F (10°C) the time period increases to 100 days. This will give you an idea of how often a battery should be checked.

Some makes of batteries will have a higher and some a lower rate of self discharge. This depends on the method of manufacture and purity of materials used.


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OUR POLICY ABOUT YOUR ORDER
Prices have been unsteady, since the Iraq War and in most cases we have been able to absorb the difference. 
Should there be a  price increase, you will be notified before we ship so you can make a decision as to keep the purchase or not. 
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Should you decide that you do not want to keep the purchase, you will need to let us know via eMail.

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On some large items such as appliances, batteries, etc. the shipping and possibly crating fees may be extra.  These items are noted by an * at the end of the Part Number. 
In such case, you will be notified of the extra charges, which need to be paid prior to shipping. 

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This Web Site is Maintained by Taos Artist, Terry Wolff - Artes del Lobo
Last up-dated on 01 July 2008