Marine batteries are generally of two types. Each type of battery has its different workings. A marine starting battery is used only for the purpose of starting the boat engine whereas a deep cycle marine battery is used for the other power requirements. These are available in a sealed form which makes them leak resistant and maintenance free. The most commonly used is the lead acid battery which is filled with an electrolyte solution of euphoric acid and can store relatively large amounts of power without taking up too much space. These batteries can further be categorized in three types.
The flooded cell or wet cell batteries are the most inexpensive and also the most popular. They work by immersing lead plates in a euphoric acid electrolyte solution. These batteries need to be taken good care of and also occasional replenishment of the electrolyte solution which is why they are not sealed. They can be prone to leaks and also the generation of hydrogen which is highly explosive unless the battery compartment is properly vented. Very precautionary measures must be taken in handling the battery. You must also be careful not to let the electrolyte come in contact with the skin as it can cause burns. Additionally, if the electrolyte comes in contact with seawater, toxic chlorine gas can be generated.
Battery Tool
Gel cell batteries use a gel like silica to stabilize and thicken the electrolyte solution. This way, even if there is a crack in the battery casing, there is no leak of electrolyte and the battery will continue functioning. Because no maintenance is required, these batteries are generally sealed but you need to be careful when charging them lest they be damaged. These batteries also reduce the electrolyte evaporation. They are also chemically similar to the wet cell batteries. They are also more expensive than wet cell batteries.
Absorbed Glass Mat (AGM) batteries are the products of the latest advances in battery technology and incorporate both safety and durability measures. Instead of a gel, they use fiberglass separators to store the electrolyte solution which makes them spill proof. The plates of the AGM batteries are usually of any shape and size and are also far more resistant to damage caused by vibration or impact and can be stored in relatively inaccessible parts of the boat because they are maintenance free. Needless to say, they are also the most expensive.
Special Price!!! Bare-Tool Milwaukee 2650-20 M18 18-Volt Impact Driver (Tool Only, No Battery)
Oct 23, 2011 10:42:23
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Bare-Tool Milwaukee 2650-20 M18 18-Volt Impact Driver (Tool Only, No Battery) Feature
- 1/4-inch hex quick change allows for easy bit changes
- Milwaukee-designed impact mechanism provides faster application speed and variable-speed trigger gives increased control
- Milwaukee 4-pole frameless motor maximizes tool efficiency to increase run-time
- Belt clip allows for easy portability and built-in LED light illuminates work surface
- On-board battery fuel gauge displays remaining run-time
Bare-Tool Milwaukee 2650-20 M18 18-Volt Impact Driver (Tool Only, No Battery) Overview
- 1/4" Hex Quick Change Chuck allows for easy bit changes
- Milwaukee® Designed Impact Mechanism provides faster application speed
- Milwaukee® 4-Pole Frameless Motor maximizes tool efficiency to increase run-time
- Belt clip allows for easy portability
- Built-in LED Light illuminates work surface
This Impact wrench delivers 2,200 RPM and a category leading 1,400 in-lbs of torque. Additionally, the driver offers 0-3,200 IPM, providing more impacts for increased productivity. A ¼" Hex Quick Change Chuck allows for easy bit changes while a variable speed trigger provides increased user control. The 2650 deploys a Milwaukee® Designed Impact Mechanism, which increases driving speed and maximizes torque. The Milwaukee® 4-Pole frameless motor maximizes tool efficiency and increases run-time. The lightweight and compact design minimizes user fatigue.
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