2 x6-dzm-20 12 volt 22 a/h (@20hr rate) booster pack batteries battery - recessed terminals (agm)

2 X SP12-20-DZM

(2 Batteries will be Supplied)  

DESIGNED SPECIFICALLY FOR HIGH DRAIN DEVICES SUCH AS BOOSTER PACKS AND JUMP START UNITS> 

What does @20Hr Rate mean?

A few years ago when you decided to purchase an automobile, there would be a sticker on the window which might have read 45 mpg. Of course everyone knew that the only way to make that car get 45 miles to the gallon was to drive at 25 miles per hour on a brand new level road. In 2008 when the EPA updated their standards, the ratings all dropped to much more sensible numbers that most careful drivers could achieve. Battery ratings are very similar. The faster a battery is drained, the less overall amperage is available. The battery’s AH rating goes down the faster you use it. This is not the same thing as saying you use up what is available faster, but you actually decrease the total overall capacity itself. To ensure that ratings are given in a realistic way, lead-acid batteries have a few parameters on how they get that ‘AH’ rating. In order to get an AH rating, the battery that is being tested has to be drained down to 0 over the course of a specified amount of time. The amount of amperage that it took to get it down to zero, over that specified amount of time constitutes the AH rating. Because of the Peukert effect (aka, The faster a battery is drained, the less overall amperage is available), if you discharge a battery over the course of 100 hours, the AH rating looks higher than if you discharge that same battery over the course of 1 hour. So, there has to be a standard. For deep cycle batteries the standard rating is 20 hours. So, if a battery has a rating of 100AH @ 20 Hr rate, then that battery was discharged over  20 hours with a 5 amp load. Starting batteries on the other hand, are typically rated at 10Hr rate, because they are used faster, so the 20Hr rate is not as important. So, that strange 20Hr rate that you see after the AH rating on batteries, that tells you that the rating in question is the realistic, common rating; rather than an over-inflated number to make the battery look better than it really is. Different manufacturers use different hour ratings. With regards to this particular battery our manufacturer actually labels the battery with its 2Hr rating of 20Ah. Most other North American manufacturers use the 20Hr rating on their label.  

The warranty covers any Manufacture defect. The warranty does not cover damages due to misuse of the battery nor diminishing run time due to normal wear and tear.

This replacement SigmasTek battery is rated at 12 Volts, 22 Amp Hour (@ 20Hr Rate). It is designed to replace many of the different sealed lead acid batteries availble in todays marketplace. It is manufacturered to a very high standard to enhance the performance of the device that it will be used for. The batteries are designed with high quality components by our certified factory. Batterybuyer.com's valve regulated sealed lead acid batteries are maintenance free, easy to handle, rugged and economical. It has a characteristic of high discharge rate, wide operating temperature, long service life and deep discharge recover.
• Absorbent Glass Mat (AGM) technology for superior performance.
• Valve regulated, spill proof construction allows safe operation in any position.
• Power/volume ratio yielding unrivaled energy density.
• Approved for transport by air. D.O.T., I.A.T.A., I.C.A.O., F.A.A.  

Some of the Products that this battery will fit are shown below.    

• Models that this battery are known to support:-

           6-DZM-20, SP12-20-DZM, 12V 20AH, 12V 22AH, 12V 18AH,

• Battery codes that this product is known to replace:-

          12V 18AH; 12V20AH 12V 22AH, 12V 17AH, 12V 17.2AH