Dakota Lithium 12V 20Ah LiFePO4 Battery with Built-in USB & Voltmeter
✅ VERSION 2.0 UPGRADE: Compact SLA-size footprint with USB-A & USB-C charging ports plus built-in voltmeter for convenient monitoring.
✅ 3X RUNTIME OF SLA BATTERIES: Delivers 3x more runtime than traditional 12Ah SLA batteries in the same compact footprint.
✅ ULTRA LIGHTWEIGHT DESIGN: At only 4.25 lbs, significantly lighter than equivalent sealed lead-acid batteries.
✅ COLD-WEATHER OPTIMIZED: Designed for reliable performance in cold conditions down to -4°F (-20°C).
The Dakota Lithium 12V 20Ah LiFePO4 Battery with Built-in USB & Voltmeter represents the next generation of portable power technology. Engineered in a compact SLA-size case (equivalent to standard 12Ah sealed lead-acid batteries), this advanced lithium battery delivers 3x more runtime while weighing only 4.25 lbs.
This Version 2.0 upgrade features dual charging ports (USB-A & USB-C) and an integrated voltmeter, providing exceptional convenience for field use. The LiFePO4 chemistry ensures a flatter, more consistent voltage curve throughout discharge, maintaining optimal performance for sensitive electronics like fish finders, GPS units, and marine electronics.
Perfect for anglers, outdoor enthusiasts, and anyone needing reliable portable power, this Dakota Lithium battery combines advanced technology, premium construction, and user-friendly features in a compact package. With an 11-year manufacturer warranty and up to 5000+ charge cycles, it represents exceptional value for demanding applications.
| Product Model | Dakota Lithium 12V 20Ah LiFePO4 Battery with USB & Voltmeter |
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 12.8V DC |
| Capacity | 20 Amp Hours (Ah) |
| Energy Storage | 256 Watt-hours (Wh) |
| Case Size | 12Ah SLA-equivalent plastic case |
| Dimensions (L x W x H) | 5.9" x 3.94" x 3.86" (151mm x 100mm x 99mm) |
| Weight | 4.25 lbs (1.93 kg) |
| Terminal Type | F2 terminals (0.25" spade sockets - SLA compatible) |
| Built-in Features | USB-A & USB-C charging ports, integrated voltmeter |
| Continuous Discharge | 10A continuous, 20A maximum |
| Charge Voltage | 14.4V recommended (15V maximum) |
| Charge Current | 10A maximum recommended |
| Charging Temperature | 32°F to 113°F (0°C to 45°C) |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Cycle Life | Up to 5000+ cycles to 80% capacity |
| BMS Protection | Cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection, high temperature protection |
| Series/Parallel Capability | Up to 4 units in series (48V max) or parallel (12V 80Ah max) |
| Certifications | UN38.3, UL1642 cells, IEC62133, ISO 9001:2015 |
| Warranty | 11-Year Manufacturer Warranty |
Charging Requirements: Use only LiFePO4-compatible chargers (14.4V charging voltage). Do not use lead-acid chargers.
USB Port Usage: USB ports are for charging small electronics only (phones, tablets, lights). Not for high-power devices.
Temperature Considerations: Avoid charging below freezing (32°F/0°C) without temperature-compensated charging.
Discharge Limits: Maximum continuous discharge is 10A. Avoid exceeding 20A peak discharge.
Water Resistance: While durable, this is not a fully waterproof battery. Protect from direct water immersion.
- 🔋 SLA Replacement Size: Fits in spaces designed for standard 12Ah sealed lead-acid batteries.
- 📱 Dual USB Charging: USB-A & USB-C ports for convenient device charging without external adapters.
- 🔋 Built-in Voltmeter: Real-time battery monitoring for quick state-of-charge checks.
- ⚡ 3x More Runtime: Delivers substantially more usable power than equivalent SLA batteries.
- ❄️ Cold-Weather Performance: Operates reliably down to -4°F (-20°C) for winter applications.
- ⚖️ Ultra Lightweight: Only 4.25 lbs - significantly lighter than lead-acid alternatives.
- 🔒 Advanced BMS Protection: Comprehensive safety features including cell balancing and protection cutoffs.
- 🔋 Flat Voltage Curve: Consistent power delivery throughout discharge for better electronics performance.
- ⚡ Expandable System: Connect up to 4 batteries in series or parallel for custom power solutions.
- 🏆 Premium Construction: High-quality components with rigorous testing and certifications.
- 🔋 Maintenance-Free: No watering, equalizing, or regular maintenance required.
- 🛡️ 11-Year Warranty: Industry-leading warranty coverage for long-term peace of mind.
🎣 FISH FINDERS & MARINE ELECTRONICS
Perfect for Garmin fish finders, sonar units, GPS systems, and marine electronics requiring stable power.
❄️ ICE FISHING & WINTER GEAR
Optimized for cold-weather performance with ice augers, sonar units, and winter outdoor equipment.
🔋 SLA BATTERY REPLACEMENT
Direct drop-in replacement for 12Ah sealed lead-acid batteries with superior performance.
📱 PORTABLE POWER STATIONS
Ideal for portable power setups, camping gear, field equipment, and mobile accessories.
🛠️ CORDLESS TOOLS & EQUIPMENT
Power for portable power tools, work lights, and remote equipment requiring reliable 12V backup.
🏕️ CAMPING & OUTDOOR ADVENTURES
Great for camping power supplies, off-grid lighting, and outdoor recreational equipment.
🔋 EMERGENCY BACKUP POWER
Reliable backup for critical electronics, communications, and emergency equipment.
🚤 KAYAK & SMALL BOAT ELECTRONICS
Ultra-lightweight power for kayak fishing setups and small boat electronics.
| Battery Type | Capacity | Weight | Estimated Runtime* | Cycle Life |
| Dakota Lithium 20Ah | 20Ah (256Wh) | 4.25 lbs | 15-20 hours | 5000+ cycles |
| Standard SLA 12Ah | 12Ah (144Wh) | 10-12 lbs | 5-8 hours | 200-500 cycles |
| Standard SLA \\ 20Ah | 20Ah (240Wh) | 15-18 lbs | 8-12 hours | 200-500 cycles |
*Estimated runtime for typical fish finder/sonar unit (1-2A draw). Actual runtime varies based on device efficiency and usage patterns.
| Feature | Dakota Lithium LiFePO4 | Typical SLA Battery |
| Weight | 4.25 lbs | 10-18 lbs |
| Cycle Life | 5000+ cycles | 200-500 cycles |
| Depth of Discharge | 80-100% regularly | 50% recommended |
| Charge Time | 2-4 hours | 6-12 hours |
| Maintenance | None required | Regular maintenance |
| Cold Weather Performance | Excellent down to -4°F | Poor below freezing |
| Self-Discharge Rate | 3-5% per month | 5-10% per month |
| Voltage Stability | Flat discharge curve | Declining voltage curve |
| Warranty Period | 11 years | 1-3 years |
| Built-in Features | USB-A, USB-C, voltmeter | None |
- 🔧 Proper Charging: Use only LiFePO4-compatible chargers with 14.4V charging voltage.
- ⚡ Cable Connections: Use appropriate gauge wiring and secure F2 terminal connections.
- 🔋 First Charge: Fully charge battery before first use for optimal performance.
- 🌡️ Temperature Management: Avoid charging below freezing without temperature compensation.
- 📱 USB Port Usage: USB ports provide 5V output for charging small electronics only.
- 🔒 Terminal Protection: Keep terminals clean and protected from short circuits.
- ⚡ Discharge Limits: Maximum continuous discharge is 10A (20A peak).
- 🔋 Storage: Store at 50% charge in cool, dry place when not in use.
- 📚 Documentation: Read all manufacturer instructions before installation.
- 👨🔧 Professional Installation: Recommended for critical applications and series/parallel setups.
| Chargers | LiFePO4-compatible chargers only (14.4V charging voltage) |
| Solar Controllers | MPPT or PWM controllers with LiFePO4 settings |
| Devices | 12V electronics, fish finders, GPS, marine electronics, lights |
| USB Devices | Phones, tablets, lights, cameras, portable speakers |
| Terminal Adapters | F2 to ring terminal adapters available separately |
| Parallel Connections | Up to 4 batteries in parallel (12V 80Ah max) |
| Series Connections | Up to 4 batteries in series (48V max) |
| Mounting | Secure in upright position with proper ventilation |
- ✅ Dakota Lithium 12V 20Ah LiFePO4 Battery – Main battery unit
- ✅ Built-in USB-A & USB-C Ports – For device charging
- ✅ Integrated Voltmeter – For battery monitoring
- ✅ Terminal Covers – For safety protection
- ✅ User Manual – Complete installation and operation instructions
- ✅ Warranty Information – 11-year manufacturer warranty details
- ⚠️ NOT INCLUDED: Charger, cables, connectors, mounting hardware
- 🚚 Fast Shipping: Most orders ship within 24 hours from our US warehouse with tracking provided.
- 🏆 Dakota Lithium Specialist: Extensive experience with Dakota Lithium products and complete power systems.
- 🛡️ Authentic Products: We only sell genuine Dakota Lithium products with full manufacturer warranty.
- 📞 Expert Technical Support: Available for compatibility questions, installation guidance, and system design.
- 🔧 Complete System Knowledge: Can help you design complete power solutions for fishing, marine, and outdoor applications.
- 📦 Secure Packaging: All products shipped in protective packaging to prevent damage during transit.
- 💯 Customer Satisfaction Focus: We stand behind our products and work to ensure every customer is satisfied.
- 🔋 Power System Expertise: Deep knowledge of lithium batteries, charging systems, and power management.
| Processing Time | 1-2 business days |
| Shipping Methods | USPS Priority, UPS Ground, FedEx Home Delivery |
| Shipping Time | 2-5 business days depending on location |
| Returns Policy | 30-day return period for unused items in original packaging |
| Warranty | 11-year limited manufacturer warranty |
| Warranty Claims | Direct support for warranty claims through Dakota Lithium |
| Technical Support | Available via eBay messages - response within 24 hours |
| Compatibility Questions | Contact us before ordering if unsure about your specific setup |