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Mon–Fri 7am–5pm

Phone: 503-362-2684
Fax: 503-362-2787

2725 Portland Rd. NE,
Salem, OR 97301


Battery School

General Battery Care Procedures

General deep cycle battery care procedures

Reasons Why Batteries Fail

General Difference Between Gel and Wet Batteries
We are frequently asked "What are the differences between sealed or gel batteries and the more conventional wet, lead acid batteries.

Below are some general differences for the consumer to consider.
Requires stabilized, regulated charging system Conventional charging system OK
1.5 to 2.3 more expensive $ Less expensive $
Maintenance free, may operate in any position Requires maintenance (water) upright operation only
May be shipped UPS FFA approved with restrictions Shipped common carrier only Cannot use for air travel
Float charging voltage 13.5 to 13.8 Float charging voltage 13.0 to 13.5
Cycle charging voltage 14.4 to 14.8 Cycle charging voltage 14.5 to 15.0
Does not deliver high CCA; better suited for long duration discharges Delivers high CCA and can deliver long duration discharges
Lower capacities given dimensions Better capacities given dimensions
Slightly less AH per pound than wet Excellent AH per pound
Less ability to dissipate heat Excellent ability to dissipate heat
Less readily available for warranty More readily available for warranty
State of Charge and Sulfation

Connect Your Batteries for Optimum Efficiency

Just A Little Corrosion Causes Big Voltage Drops

Don't Be Misled By Battery Ratings

Which Deep Cycle Battery Do I Choose?

Daily Amphere-Hour Consumption For Your RV

Safety Tips on Charging Batteries

Determining When A Battery is Fully Charged

Why Are My Batteries Discharged

What is the difference between series battery connections and parallel battery connections and how do they increase battery capacity and voltage?

Jump start procedures

Preparing your batteries for winter

Advantages and Disadvantages of using two 12 volt batteries connected in parallel or two 6 volt batteries connected in series.

Testing the battery