
Monster Marine Lithium | 12v 80Ah Bluetooth Deep Cycle Lithium Marine Battery
12v 80Ah Bluetooth Deep Cycle Lithium Marine Battery – Group 24 | MML-1280B
Compact Power. Smart Monitoring. Built for the Water.
The MML-1280B 12v 80Ah Bluetooth Lithium Battery is a compact and powerful solution designed for marine electronics, 12v trolling motors, and outdoor applications. Weighing just 20 lbs and housed in a Group 24 case, this battery delivers twice the power, four times the lifespan, and 60% less weight than traditional sealed lead-acid batteries.
Equipped with Bluetooth monitoring, you can track battery status in real-time through our iOS & Android app—giving you peace of mind wherever your adventure takes you.
Key Features:
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Group 24 Drop-In Fitment
Compact and easy to install in most standard battery trays. -
Super Lightweight (20 lbs)
Cut the weight without sacrificing power or performance. -
Smart Bluetooth Monitoring
View battery voltage, state of charge, and more from your smartphone. -
Advanced LiFePO4 Technology
Delivers steady power output and over 4000+ charge cycles. -
Easy Plug-and-Play Setup
Connect your main positive and negative wires—no complex wiring needed. -
Expandable Power
Connect in series for 24V, 36V, or 48V setups or parallel for higher capacity.
Perfect For:
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12v Trolling Motors (All Brands)
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Kayaks, Ice Fishing, Outdoor Gear
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Marine Electronics
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Off-grid Solar Systems
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Golf Carts (multi-battery configurations)
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SLA Group 24 Battery Replacement
Charger Compatibility:
This 12v 80Ah lithium battery works with AGM-capable chargers from:
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Minn Kota (Precision & Digital)
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Dual Pro
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NOCO
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Real Pro
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Pro Sport
Note: Chargers must support AGM charging mode.
Specification
Weight
22 lbs
Size Dimensions
L 10.25 in x W 6.5in x H 8.2 in
Group 24
Voltage
12.8V
Energy
1024 Watts (Wh)
Amp-Hours
80Ah
Charge Volts
14.6v
Max charge current 80A
Continuous Discharge Amps
100A max
Terminals
M8 bolt
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
Frequently Asked Questions

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