Deep Cycle Marine Battery - The Best Marine, Automotive, Industrial and Trolling Motor Batteries

 

odyssey 31m pc2150 1mLead-acid marine and automotive batteries are a very important piece of equipment, regardless if you have a small boat that can be pulled out on dry land by hands, a large vessel suitable for long off-shore fishing trips, a city car with an internal combustion engine, or you have large 4x4 SUV/truck for outdoors adventures.

Today, there are several battery types that are commonly used like Lead Acid batteries, Nickel-Cadmium batteries, Nickel Metal Hydride batteries, Lithium batteries, etc.

Non-lead acid battery types do have their advantages, but so do the lead-acid batteries and they are still the most used marine/automotive battery type.

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BCI Battery Groups Battery Equivalents Articles and Guides

The most popular marine, automotive, industry, and off-the-grid battery group sizes are listed in the following BCI Battery Groups Chart:

BCI Battery Group Size L x W x H (inches/mm) Typical Capacity (Ah) Typical CCA (Amps) Typical RC (min)
Group 4D Batteries 20.75 x 8.75 x 9.875
527 x 222 x 250		 170 - 200 1200 - 1500 350 - 470
Group 8D Batteries 20.75 x 11.125 x 9.875
527 x 283 x 250		 200 - 350 1450 - 2700 460 - 780
Group 24 Batteries 10.25 x 6.8125 x 8.875
260 x 173 x 225		 75 - 85 500 - 840 140 - 180
Group 27 Batteries 12.0625 x 6.8125 x 8.875
306 x 173 x 225		 66 - 110 640 - 870 140 - 220
Group 31 Batteries 13 x 6.8125 x 9.4375
330 x 173 x 240		 75 - 125 600 - 1150 155 - 240
Group 34 Batteries 10.25 x 6.8125 x 7.875
260 x 173 x 200		 50 - 75 750 - 880 100 - 145

Of course, other sizes are used as well, but not as much as these.

Our Latest Reviews, Articles, and Guides

Here are our latest reviews, articles, and guides, ordered according to the date added or updated:

Interstate DCM0100 12V 110 Ah SLA/AGM Deep Cycle Battery

interstate dcm0100 mInterstate DCM0100 battery is a large and heavy, but strong and sturdy Sealed Lead-Acid (SLA) Absorbent Glass Mat (AGM) battery, intended for Deep Cycle Mobility (DCM) applications requiring ~100Ah (0100) batteries.

Interstate DCM0100 battery is a Valve-Regulated Lead-Acid (VRLA), spill-proof maintenance-free battery, and can be mounted in virtually any position, except upside-down. However, if possible, it and similar batteries should be positioned in an upright position.

Ampere Time 12V 300Ah Lithium Iron Phosphate LiFePO4 Deep Cycle Battery

ampere time 12v 300ah lithium m
ampere time 12v 300ah lithium m

Ampere Time 12V 300Ah Lithium Iron Phosphate LiFePO4 Deep Cycle Battery is a large and surprisingly lightweight deep cycle LiFePO4 battery, being able to provide very constant output voltage, with the maximum continuous output power of ~2.5 kW.

Thanks to the advanced BMS, it can be connected in parallel and series (up to 4 batteries in parallel/series), creating battery packs with even larger capacity and voltages up to 48 volts.

How to Charge a Deep Cycle Battery Properly

upg ub121000 1mDeep cycle batteries may be recharged in many ways, but the best thing to do is to follow recommendations by their manufacturers regarding charging voltages, temperatures, and currents.

However, in real-life situations, such ideal charging conditions are not always possible.

YTX20L-BS and YTX20HL-BS Powersports Batteries

ytx20l mYTX20L-BS and YTX20HL-BS are rather popular starting/cranking batteries commonly found in mid and high-range motorcycles, snowmobiles, lawn mowers, boats, ATVs, and similar.

Modern YTX20L-BS and YTX20HL-BS batteries are generally Sealed Lead-Acid (SLA) Absorbent Glass Mat (AGM) batteries that are very resistant to vibrations and mechanical damage, prolonging their operating lifetime and increasing reliability. However, even such batteries must be replaced occasionally...

Best BCI Group 65 Batteries

group 65 battery mBCI Group 65 batteries are mid-range automotive and light industry batteries, often used in marine applications as starting/cranking batteries and as deep-cycle/dual-purpose batteries in both single- and dual-battery systems.

The most popular BCI Group 65 battery type is a lead-acid AGM battery, although lithium batteries are becoming more and more popular as well.

BESTEK MRI5011BU 500W 12V Power Inverter

bestek 500w power inverter mBESTEK MRI5011BU 500W 12V Power Inverter is compact and lightweight, but also rather versatile and durable DC to AC power inverter with the modified sine wave output.

BESTEK 500W 12V Power Inverter is rated at 500W continuous, with 1000W peak power. Its input voltage is 12V, and the unit comes with two 5V USB and two 110V AC output ports.

Renogy 12V 200Ah RNG-BATT-AGM12-200 AGM Deep Cycle Battery

renogy 12v 200ah agm mRenogy 12V 200Ah RNG-BATT-AGM12-200 AGM Deep Cycle Battery is a rather popular, general-purpose 12V 200Ah AGM battery. Renogy RNG-BATT-AGM12-200 battery is an Absorbent Mat Glass (AGM) Sealed Lead-Acid (SLA) battery that is spill-proof and maintenance-free battery, suitable for deep-cycle and standby applications, like trolling motor battery, power inverter battery, solar battery, UPS battery, RV house battery, etc.

Although it is primarily intended for deep cycle applications, Renogy RNG-BATT-AGM12-200 is, due to its size, capable of cranking rather large diesel and especially gas engines.

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