WEIZE BCI Group 31M AGM Battery, 12V 105AH Dual Purpose Starter & Deep Cycle Sealed Marine & RV Battery

Product Overview: Dual-Purpose vs. Deep-Cycle Batteries

Instead of requiring separate starting and deep-cycle batteries, dual-purpose batteries efficiently handle both tasks. They can start the engine and provide power for accessories and electronics simultaneously. AGM batteries, which are particularly robust, offer 20 times more vibration resistance and twice the cycle life of traditional flooded marine batteries. Their advanced technology provides excellent shock and vibration resistance, making them ideal for handling the accessory demands found in RVs and boats.

Charging Guidelines

It is essential to fully charge an AGM battery when its voltage drops to 12.7V. These batteries can be stored at 25°C for up to six months without needing a recharge. If stored for more than six months, a full charge is necessary. When charging, use a constant voltage of 14.4±0.1V with a maximum current of 0.2C₂₀A, where C₂₀ is the battery's rated capacity. For instance, for a 105Ah battery, the maximum charging current should be 21A until the current stabilizes for 2 to 3 hours. However, ensure the total charging time does not exceed 24 hours.

Available Battery Models

• 24M-550CCA Battery:
• Price: $229.99
• CCA: 550
• MCA: 660
• RC: 150 minutes
• Capacity (20HR): 79Ah

• Terminal Type: DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT

• 27M-580CCA Battery:

• Price: $239.99
• CCA: 580
• MCA: 700
• RC: 175 minutes
• Capacity (20HR): 92Ah

• Terminal Type: DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT

• 31M-825CCA Battery:

• Price: $259.99
• CCA: 825
• MCA: 1000
• RC: 200 minutes
• Capacity (20HR): 105Ah

• Terminal Type: DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT

• 34M-650CCA Battery:

• Price: $189.99
• CCA: 650
• MCA: 780
• RC: 120 minutes
• Capacity (20HR): 55Ah
• Terminal Type: DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT

Customer Reviews

All models boast a high customer satisfaction rating of 4.7 out of 5 stars, based on 68 reviews.

Ideal Applications

The Weize AGM dual-purpose batteries are ideal for:

• Motorhomes & RVs
• Caravans & Camping
• Boats & Marine Use

Product Features

[DUAL PURPOSE]: The WEIZE BCI Group 31M battery is a dual-purpose, deep-cycle, sealed AGM battery designed for marine and RV applications. It delivers exceptional starting power along with deep cycling capabilities for a prolonged power supply. The battery's terminal configuration is as follows: Left - Positive (+) in red; Right - Negative (-) in black.

[HIGH PERFORMANCE]: Featuring advanced AGM technology, the WEIZE BCI Group 31M battery is characterized by low internal resistance and high output power. This results in a dependable power supply and extended battery life, boasting twice the cycle life of conventional flooded marine batteries.

[QUICK CHARGE]: The WEIZE BCI Group 31M battery offers rapid charging, allowing it to recharge up to five times faster, thus saving time and enhancing efficiency. For charging, maintain a constant voltage of 14.4±0.1V with a maximum current of 21A until the current stabilizes for 2 to 3 hours. However, ensure that the total charging time does not exceed 24 hours.

[LOW MAINTENANCE]: Designed to be nearly maintenance-free, the WEIZE BCI Group 31M minimizes surface corrosion and proves to be more durable. It also performs exceptionally well against vibrations, with 20 times more vibration resistance than flooded batteries.

[SAFETY]: With a leak-proof design and specialized valves, the WEIZE BCI Group 31M battery ensures safety and prolongs battery life. These batteries come with a confident 2-year warranty, ensuring quality backed by excellent customer service. Note that Amazon does not handle returns for battery-related products, so please contact the seller directly for support. The Weize support team is readily available to assist you.

Overall, these batteries are a reliable choice for those seeking durability, performance, and versatility in their power sources.

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