The Dakota Lithium 12V 20Ah LiFePO₄ Deep Cycle Battery with USB combines portable deep-cycle power in a 12Ah SLA-size replacement format with built-in USB-A and USB-C charging for phones, cameras, and other electronics. A built-in voltmeter provides quick voltage monitoring for fishing, camping, trail cameras, mobility equipment, and other off-grid setups.
Supported by Dragonfly Energy’s U.S.-based team and backed by an 11-year limited warranty on core battery function.
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| Specifications | |
|---|---|
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 12.8V |
| Capacity | 20Ah |
| Nominal Energy | 256Wh |
| Battery Type | Deep Cycle |
| Terminal Type | F2 |
| Technical Specifications | |
|---|---|
| Max Discharge Current | 20A |
| Max in Series | 4 |
| Max in Parallel | 4 |
| Recommended Charge Voltage | 14.2V |
| Recommended Charge Current | 4A |
| Max Charge Current | 10A |
| Recommended Operating Temperature (Discharge) | -4°F to 140°F (-20°C to 60°C) |
| Low-Temperature Charge Protection | Yes |
| Dimensions | |
|---|---|
| Length | 5.94 in |
| Width | 3.94 in |
| Height | 3.90 in (4.13 H incl. terminals) |
| Weight | 3.86 lb |
| Standard Size Footprint | UB12120-Size SLA |
| *Disclaimer | Group sizes and form factors are provided as dimensional references only. Battery compartments, terminals, connections, hold-downs and clearance requirements may vary. Always verify the battery dimensions and specifications for your application before purchase. |
Overall rating: 4.962963 / 5 from 162 reviews.
This 12V 20Ah LiFePO₄ deep cycle battery offers perfect size, suitable voltage for various devices, and a light yet durable weight. It features built-in USB charging and a battery-level display, supported by a U.S.-based team and an 11-year warranty.
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"Initially, I wanted a 10Ah battery, but the voltage monitor and USB charging ports built into this battery were enough to upsell me to 20Ah. This battery runs my Yaesu FT-891 and LDG Z11 Pro II tuner all day long and still powers a light for as long as I need it at night."
"Great battery"
"Powering a Perfect Limit Jerk string for duck hunting and it’s amazing"
"Long lasting in the Garmin love the USB and volt meter"
"Perfect size and the built in device charging is awesome!"
"Great battery. Perfect size and weight for running the auxiliary system on my fishing kayak."
"I bought the 12v 20ah battery to power my Garmin Echomap 74sv chart plotter. Only been able to use it a couple times but so far so good. Doesn't seem to be much drain on the battery. I got the recommended charger as well and all seems to be working as intended. Will put it all to the test this fall."
"Prompt response, within an hour, to my over billing question. Thanks."
"I'm a Amateur radio operator and have 2 of the 12v 10aH batteries. Wanted something a little more aH for a go-box I've just finished. this was the PERFECT battery, right size, right aH I really like it! It does the job REALLY well!"
"Replaced the four 12v 12ah lead acid batteries with four of the Dakota Lithium 12v 20ah batteries in my scooter. WOW, what a difference. MUCH more power. Drop in replacement, no issues. If you need to replace a battery, this is by far the best way to go. AAAAA+++++"
