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Midstate Battery

Power-Tech Marine AGM Batteries

$123.30Limited StockSee Product Details

Home / Electrical / Marine Batteries and Accessories

Midstate Battery

Power-Tech Marine AGM Batteries

$123.30Limited StockSee Product Details

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Product Details Tech Specs Info & Guides Data Sheets

Product Details

Power-Tech Marine AGM Batteries use special absorbed electrolyte technologythat is superior to flooded lead-acid batteries. Fine, highly porous microfiber glass separators absorb the electrolyte, increasing efficiency by lowering internal resistance and boosting capacity.

Lower internal resistance also means that the batteries can be recharged faster than conventional batteries, allowing the user to put them back into operation sooner.

The completely sealed, valve-regulated AGM battery eliminates gas emissions and acid leakage for longer and safer battery operation. AGM batteries are completely maintenance-free.

Tech Specs

Item Number	Volts	Group	Marine Cranking Amps	Reserve Capacity (minutes)	Amp Hours
BAT-8AU1	12v	U1	335	48	32
BAT-8A22NF	12v	22NF	390	90	55
BAT-8A24	12v	24	660	140	79
BAT-8A27	12v	27	810	176	92
BAT-8A31DT	12v	31	850	195	105
BAT-8A4D	12v	4D	1420	380	198
BAT-8A8D	12v	8D	1725	461	245
BAT-8AGC2	6v	GC2	865	380	187

Item Number	Dimensions (L" x W" x H")	Weight (Lbs)
BAT-8AU1	7.75 x 5.125 x 7.75	24
BAT-8A22NF	9.375 x 5.5 x 9.25	39
BAT-8A24	10.875 x 6.75 x 9.875	53
BAT-8A27	12.75 x 6.75 x 9.875	63
BAT-8A31DT	12.937 x 6.75 x 9.375	68
BAT-8A4D	20.75 x 8.2 x 10	124
BAT-8A8D	20.75 x 11 x 10	156
BAT-8AGC2	10.25 x 7.125 x 10.875	72

Info & Guides

Charging:

Use a good, constant potential, voltage-regulated charger. For 12-volt AGM batteries, charge to at least 14.4 volts, but no more than 14.6 volts at 68F (20C). Do not charge in a sealed container.

Technical Information

Power-Tech AGM batteries offer premium power, quality and performance.
Maintenance free
Long, deep discharges
Sealed/Submersible

Data Sheets

PDF of Technical Manual for Valve-Regulated Lead-Acid (VRLA): Gelled Electrolyte (gel) and Absorbed Glass Mat (AGM) Batteries

VIEW

SVR Gel vs. SVR AGM vs. Flooded Batteries -- Starting vs. Deep Cycle vs. Dual Purpose Batteries - Which is Right for Your Marine Application?

VIEW

Technical Bulletin: Flooded, AGM or Gel - Which is Best?

VIEW

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5 out of 5 stars.

Yes, I would (and have) bought this again.

5 years ago

Just fine. But I hate these surveys. We are being surveyed to death!

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Questions

1 - 6 of 6 Questions

Q: Could several 8a8d batteries be connected in parallel for a 12v battery bank for an off grid solar system

4 years ago

1 Answer

A: Yes

4 years ago

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Q: I would like to join 6 of the 8A8D batteries in parallel to create a battery bank for solar. How should i hook this up

4 years ago

1 Answer

A: JD does not sell Solar systems. You will need a Solar charge controller. Whichever one you choose should have instructions on how to hook up the batteries.

4 years ago

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Q: For how many discharge cycles is the Power-Tech Marine Group 31, 105 Ah battery rated?

6 years ago

1 Answer

A: If not discharged below 50% before recharging you should get around 500 cycles.

6 years ago

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Q: Can you tell me what is better 2 X group 31 battery or 1 X D8 Do you have the amp hours , reserve and crank amp difference vs dual group 31 vs 8D

7 years ago

1 Answer

A: For the $ it seems that the 8D is pretty equal or just a little better for all of these factors than 2 x group 31 batteries. An 8D is also heavier and can take a larger area than 2 x group 31 batteries. The safety factor is that if you get 2 group 31 batteries, you can pull off of one or the other, being able to manage your amp hours/usage, and if one battery is exhausted, you still have one to start the engine at full cranking amps.

6 years ago

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Q: Dont understand what the Group designation means on AGM batteries. I need a new battery for my boat but would like to pick wisely. Can you explain what the 'group' means please?

7 years ago

1 Answer

A: If you open up this item on our website, scroll down and it will list the various sizes for the group designations along with amps and amp hours.

7 years ago

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Q: Looking for a smaller sized 12 volt marine battery just to power my navigation lights on a small skiff and as a back up if I need to start my outboard. Any suggestions or are they all the large marine 12 volt that is a standard?

11 years ago

1 Answer

A: Can't answer your specific question. However, an excellent battery for powering a small, 40 thrust, electric motor.

11 years ago

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