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Marine AGM Battery San Diego

Call DCBSD Today to Quote Replacing Your Marine AGM Battery San Diego

Marine AGM BatteryMarine AGM Battery San Diego

A marine AGM battery is a sealed battery that is maintenance free and perfect for hard to reach places in boats where battery watering is not possible. An Absorbed Glass Mat or AGM is a type of battery chemistry where the electrolyte is immobilized in between the battery plates.
An older battery design and a “cousin” to AGM is the sealed Gel chemistry design. Note, the Gel marine battery is more expensive to manufacture but still popular for high temperature climates.
Currently, today’s top AGM marine batteries are designed for high cycle rates needed marine applications ie boat house power but also useful for marine engine starting.
The lead calcium alloy battery design makes recharging quicker and self discharge slower.

Tips for Long Battery Life

  • Avoid frequent deep discharges.
  • Never leave a battery at a low stage of charge for an extended length of time. Charge a discharged battery as soon as possible.
  • Don’t cycle a battery at low voltage without regularly re-charging fully.
  • Alway use a high initial charging current (up to 30% of the 20-hour capacity per hour) while staying within the proper temperature-compensated voltage range.

Understanding Battery Capacity

Ampere hour capacity (Ah) is calculated by multiplying the batteries current in amperes by time in hours (HR) of discharge to a 1.75 volts per cell (VPC) threshold.  Battery capacity example:

  • 10 amperes for 20 hours (10 x 20) = 200 Ah @ 20HR.  @20HR is most common rate on labels
  • 8 amperes for 3 hours (8 x 3) = 24 Ah @ 3HR
  • 30 amperes for 1 hour (30 x 1) = 30 Ah @ 1HR

Battery Capacity Application Example

Lets say your sizing a battery to power a 17 amp load (pump, lights etc) for 3 hours.
The math is 17 amps x 3 hours  = 51 Ah of battery capacity. But only discharge a battery 50%, double 51Ah to 100+Ah to extend battery life.

 

Deep Cycle Battery San Diego offers two categories of Marine AGM Batteries – Good & Best in Terms of Longevity and Performance

A very “Good” rated marine AGM battery for your boat,  would be AGM marine batteries by Trojan, Crown and Leoch battery.

Marine AGM Battery Marine AGM Battery Marine AGM Battery
The “Best” marine AGM battery in terms of service life would be reserved for Lifeline battery company.

Free local delivery to your boat for two or more marine AGM batteries ordered.

Lifeline Battery Rated “Best” and Longest Lasting Marine AGM Battery 

Marine AGM Battery San DiegoShop Lifeline Marine with 5 yr Warranty Price Range $$

Lifeline Marine AGM battery is a family owned company and manufacture in San Dimas, CA. and one of the longest lasting AGM battery produced for boats.

Shop for Lifeline battery prices or follow link to Lifeline Battery Shopping page

Good Marine AGM Battery and Affordably Priced Marine Battery by Crown, Leoch & Trojan Battery

 Shop Crown Marine AGM Battery at DCBSD

Marine AGM BatteryShop Trojan Marine AGM Battery at DCBSD

Marine AGM Battery San Diego Shop Leoch Marine AGM Battery at DCBSD

All three Marine AGM Battery Brands are Well Made and Sold at an Affordable Price

Size 24 AGM Marine Batteries for Sale

The size 24 battery is roughly 12 inches in length.

Deep Cycle Crown 12CRV80 Size 24 AGM Marine  Battery for Sale & In Stock.
 Crown 12CRV80 Price: $175 ea * AGM is absorbed glass mat and is a non-spill battery with a more rapid recharging rate than traditional flooded .  The 12CRV80 has marine terminals 

Marine AGM Battery Marine AGM Battery San Diego

80 ah 12 volt marine AGM battery for sale in San Diego. Part number 12CRV80
*  Crown 12CRV80 Battery Price: $175 ea *
(Cores are required to void core charge of $15)

 Crown 12CRV80 Battery Features:

  • Sealed AGM
  • High Cycling 80 ah vs 55 ah west marine p/n AGM 55
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $15)

Leoch LDC12-90 AGM Battery Size 24 Marine Deep Cycle Marine Battery Price: $184 ea * Higher Virgin lead AGm, with hig amp hours and non-spill battery with rapid charging battery

Marine AGM Battery Marine AGM Battery

True Deep Cycle House Power Leoch LDC12-90 Replaces Deka 8A24M or west marine AGM 55

Leoch LDC12-90 Battery Features:

  • Sealed AGM
  • High Cycling 90 ah vs 55 ah west marine p/n AGM 55
  • 24 month warranty vs 18 month west marine
  • Leoch the Deka Battery Replacement Price: $184 ea with exchange
  • *(Cores are required to void core charge of $15)

Size 27 AGM Marine Batteries for Sale

The size 27 battery is roughly 12 inches in length.

Crown 12CRV100 AGM Battery Size 27 Marine Deep Cycle Marine Battery Price: $210 ea * Absorbed glass mat, non-spill, rapid charging marine battery with marine terminals  

Marine AGM Battery San Diego

100 ah 12 volt marine AGM battery for sale in San Diego. Part number 12CRV100
One 12 volt Marine AGM Battery Price: $210 ea *(Cores are required to void core charge of $15)

  • Sealed AGM
  • High Cycling 100 ah vs 92 ah west marine p/n AGM 92
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $15)


Marine AGM BatteryMarine AGM Battery San Diego

 

Size 27 Marine Deep Cycle Marine Leoch LDC12-105 AGM 105 ah Battery Price: $210 ea * High amp hour, absorbed glass mat, non-spill, rapid charging marine battery for sale 

Marine AGM BatteryMarine AGM Battery San Diego

105 ah 12 volt Size 27 marine AGM battery for sale in San Diego. Leoch part number LDC12-105
One 12 volt Marine AGM Battery Price: $210 ea *(Cores are required to void core charge of $15)

  • Sealed Virgin Lead AGM Marine Battery
  • High Cycling 105 ah vs 92 ah west marine p/n AGM 92
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $15)

Size 31 AGM Marine Batteries for Sale

The size 31 battery is roughly 13 inches in length.

The Crown Marine AGM Battery 12CRV110 Size 31 Deep Cycle Marine Battery
Price:
 $220 ea with exchange for a Sealed Non-Spill Marine Battery 

Marine AGM Battery San Diego

110 ah 12 volt Crown marine AGM battery for sale in San Diego. Part number 12CRV110 battery
One 12 volt Marine AGM Battery Price: $220 ea *(Cores are required to void core charge of $20)

  • Sealed AGM
  • High Cycling 110 ah vs 105 ah west marine p/n AGM 105
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $20)

Leoch LDC12-115  Marine AGM Battery Size 31 Virgin Lead Marine Deep Cycle Marine Battery Price: $239 ea * Sealed Non Spill Marine Battery 

Marine AGM Battery San DiegoMarine AGM Battery San Diego

115 ah 12 volt Size 31 marine AGM battery for sale in San Diego. Leoch part number LDC12-115
One 12 volt Marine AGM Battery Price: $239 ea *(Cores are required to void core charge of $20)

  • Sealed Virgin Lead AGM Marine Battery
  • High Cycling 115 ah vs 105 ah west marine AGM 105
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $20)

Size 4D Deep Cycle AGM Marine Batteries for Sale

The battery group size 4D is approx 2.08 inches in length by 8.23 inches wide.

A Crown Model 12CRV4D  Marine AGM Battery with Dual Marine Terminal for Sale. Deep cycle Battery SD Marine Battery Price is $499 ea * Sealed Non Spill Marine Battery 

Marine AGM Battery San Diego

One 4D 160 ah 12 volt Crown marine AGM battery for sale in San Diego. Crown Part number 12CRV4D battery.  Current Price is $499 *(Cores are required to void core charge of $35)

  • Sealed AGM
  • Marine terminal vs west marine auto style battery terminals
  • $499 4D battery price vs $789 west marine price
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $35)

Leoch Marine AGM Battery Part Number LDC12-200-4D Virgin Lead Marine Deep Cycle for Sale, with Current Price at $463 ea * AGM Sealed Non-Spill Marine Battery in Stock 

Marine AGM Battery 4D Marine AGM Battery San Diego

200 ah 12 volt Size 4D marine AGM battery for sale in San Diego. Leoch marine battery part number LDC12-200 with current price at $463 ea *(Cores are required to void core charge of $35)

  • Sealed Virgin Lead AGM Marine Battery
  • High Cycling 200 ah vs 198 ah west marine p/n AGM 198
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $35)

Battery Size 8D AGM Marine Deep Cycle Batteries for Sale

The battery group size 4D is approx 2.08 inches in length by 10.6 inches wide.

A Crown Model 12CRV8D Marine AGM Battery Size 8D Marine Battery for Sale at Current Price: $560 ea * with Marine Dual Style Terminals

Marine AGM Battery San Diego

240 ah 12 volt Crown marine AGM battery for sale in San Diego. Part number 12CRV8D battery
One 12 volt Marine AGM Battery Price: $560 ea *(Cores are required to void core charge of $45)

  • Sealed AGM
  • Marine terminal vs west marine auto style battery terminals
  • $560 8D battery price vs $889 west marine price
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $45)

Trojan Marine AGM Battery Part Number 8D-AGM Marine Deep Cycle for Sale, with Current Price at $475 ea * AGM Sealed Non-Spill Marine Battery in Stock 

Marine AGM Battery 8D Marine AGM Battery San Diego

230 ah 12 volt Trojan marine AGM battery for sale in San Diego. Part number 8D-AGM battery
One 12 volt Marine AGM Battery Price: $475 ea *(Cores are required to void core charge of $45)

  • Sealed AGM battery dimensions 20.47″ x 10.64″ x 9.08″
  • Marine terminal vs west marine auto style battery terminals
  • $475 8D battery price vs $889 west marine price
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $45)

 6 volt AGM Marine House Batteries for Sale

For marine battery house power, it the 6 volt deep cycle battery delivers more amps than a 12 volt battery and has about three times the discharge and recharge cycles. For this reason, most boats that plan on doing a lot of inverting will opt for six volt marine agm deep cycle battery for house power.
The sealed AGM 6 volt marine measures approx 10 inches in length by 7 inches wide and ten inch tall.

Crown Part Number 6CRV220 AGM 6 volt Marine Deep Cycle Battery Current Price is $245 ea * 6 volt Absorbed glass mat, non-spill, rapid charging marine battery with marine terminals 

Marine AGM Battery 6v Marine AGM Battery San Diego

220 ah 6 volt marine AGM battery for sale in San Diego. Part number 6CRV220
The Current 6 volt Marine AGM Battery Price is $245  ea *(Cores are required to void core charge of $20)

  • Sealed AGM
  • High Cycling House Power of 220 ah vs 190 ah west marine p/n AGM 6v 190
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $20)

Leoch DTA6224 Marine AGM Battery Part Number with Virgin Lead 224 ah 6 volt Marine Battery Price is on sale at $210 ea * for Sealed Non Spill 6 volt Marine Battery

 Marine AGM Battery 6vMarine AGM Battery San Diego

224 ah 6 volt Size GC2 marine AGM battery for sale in San Diego. Leoch marine battery part number DTA6224 with a current on sale price at $210  ea *(Cores are required to void core charge of $20)

  • Sealed Virgin Lead AGM Marine Battery
  • High Cycling 224 ah vs 198 ah west marine p/n AGM 198
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $20)

 

Trojan Marine AGM 6 volt Battery Part Number 6v-AGM for Sale, with Current Price at $245 ea * 6 volt House AGM Sealed Non-Spill Marine Battery in Stock

 

Marine AGM Battery 6vMarine AGM Battery San Diego

200 ah 6 volt Trojan marine AGM battery for sale in San Diego. Part number 6V-AGM battery
One 6 volt Marine AGM Battery Price: $245 ea *(Cores are required to void core charge of $20)

  • Sealed AGM battery dimensions 10.28″ x 7.08″ x 10.74″ tall
  • High Cycling 200 ah vs 198 ah west marine p/n AGM 198
  • $245 battery price vs $449 west marine price
  • 24 month warranty vs 18 month west marine
  • *(Cores are required to void core charge of $45)

Lifeline Has an Excellent Reputation as Marine AGM Battery Company 

Marine AGM Battery by LifelineFamily owned, Lifeline was founded by Concorde battery corp and manufactured in San Dimas, CA.

Lifeline Marine AGM Battery Charging Parameters

Bulk Charge Voltages: 14.20 – 14.60
Absorbtion Charge Voltages: 14.20 – 14.60volts
Float Charge Voltages: 13.10 – 13.40

Lifeline Marine Battery Terminal Options

The “blade” of L terminal is most common in marine applications.  If you have a marine battery with an auto-post style terminal, it may have an adapter to connect the eyelet style boat cables

Lifeline GPL-4DL 12 volt 4D Marine AGM Battery for Sale in San Diego with L type Terminal 210 amp hour 1360 CA at 32 F, 1100 CCA at Zero F

Current Lifeline Marine AGM Battery Price GPL-4DL is  $599 ea with exchange. Free local delivery to your boat with order of two or more

Lifeline_Marine_Battery_GPL_4DL Marine AGM Battery San Diego
Lifeline 4D Marine AGM Battery for Sale

  • 20.75″ L x 8.7″ W x 8.64″ H
  • 1360 CA 1100 CCA
  • 255 Amp Hours
  • 124 lbs

Lifeline GPL-4DA 12 volt 4D Marine AGM Battery for Sale in San Diego with Auto type Terminal 210 amp hour 1360 CA at 32 F, 1100 CCA at Zero F

marine-agm-battery-terminal Lifeline Marine Battery 4D AGM Current Lifeline Marine AGM Battery Price GPL-4DA is  $589 ea with exchange. Free local delivery to your boat with order of two or more

  • 20.75″ L x 8.7″ W x 8.64″ H
  • 1360 CA 1100 CCA
  • 255 Amp Hours
  • 124 lbs

Lifeline 8D Battery Model GPL-8DL is both a Deep Cycle AGM Battery and Starting Battery Typically Used for Diesel Powered Engines and House Battery Power

12 volt 8D Marine AGM Battery for Sale in San Diego with L type Terminal 255 amp hour 1675 CA at 32 F, 1350 CCA at Zero F

 

Lifeline Marine AGM Battery Price GPL-8DL $699.00 ea with exchange.

Lifeline AGM Marine Battery GPL8DL For Sale Lifeline Marine 8d battery L terminal Marine AGM Battery San Diego

  • 20.75″ L x 11″ W x 8.64 H
  • 1675 CA 1350 CCA
  • 255 Amp Hours
  • 165 lb

L Type Terminal Lifeline 8D Battery for Sale San Diego Model GPL-8DL Price $699 ea with exchange*(Cores are required to void core charge of $25) 255 amp hour

Lifeline Marine AGM Battery Model GPL-8DA is a Deep Cycle Marine Battery and Marine Starting Battery Typically Used for Diesel Powered Engines.

12 volt 8D Marine AGM Battery for Sale in San Diego 8D Size with Auto type Terminal 255 amp hour 1675 CA at 32 F, 1350 CCA at Zero F

Lifeline 8D Marine AGM Battery Price GPL-8DA $699.00 ea with exchange*(Cores are required to void core charge of $25)

Lifeline AGM Marine BatteryLifeline AGM 8d battery auto post terminal Marine AGM Battery San Diego
A
uto Post Terminal Lifeline 8D Battery

  • 20.75″ L x 11″ W x 8.75″ H
  • 1675 CA 1350 CCA
  • 255 Amp Hours
  • 165 lbs

Model GPL-8DA Price $699 ea with exchange with exchange*(Cores are required to void core charge of $25)
255 amp hour

 How to Tell if a Marine AGM Battery is Fully Charged

Using a voltmeter at the batteries terminals to measure open circuit voltage

Open Circuit Voltage vs. State of Charge Comparison*

NOTE: Divide values in half in using 6-volt batteries. Accurate O.C.V. measurement can only be determined after the battery has been off charge or load for 24 hours

% Charged

Flooded

Gel Battery 

AGM Battery

100

12.60v or higher 12.80v or higher 12.80v or higher

75

12.40v 12.65v 12.60v
50 12.20v 12.35v

12.30v

25

12.00v

12.00v

12.00v

0 11.80v 11.80v

11.80v

Troubleshooting Marine AGM Battery Damage

Sealed batteries can not only be damaged by overcharging but by undercharging as well.
A sealed AGM or Gel battery left in discharged condition allow the positive grids to corrode and lead fall off the plates referred to as “shedding”.
In addition, because an undercharged battery has reduced amp hours, it may be over-discharged in an application, causing more damage.

Load Testing Your Sealed Marine Battery

For a sealed AGM or Gel battery, use the same battery load testing method used on flooded batteries.

  1. If battery voltage is 75% SOC recharge battery.
  2. If load tester is adjustable, set load to 1/2 the batteries CCA rating or three times the 20HR rate
  3. Apply load for 15 seconds and record the voltage drop.  Battery voltage should stabilize above 9.3 volts under load test.