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Dakota Lithium 12V 46Ah Deep Cycle U1

Dakota Lithium's product page

The Dakota Lithium 12V 46Ah Deep Cycle U1 is a battery pack with a nominal voltage of 12.8V, a rated capacity of 46Ah, a continuous discharge of 50 A and a weight of 10.5 lb (4.75 kg).

Last updated: 2 November 2026

What we found

  • Matched to a device: MotorGuide R3 30 lb freshwater (12 V, 30" shaft, 5 forward/2 reverse), by setting each maker's published figures against the other — neither names the pairing.
  • 10 devices are compared as NOT run by it, by setting each maker's published figures against the other — neither names the pairing.
  • Specifications are published for it, each with its source, 1 of them corroborated by a second source.
  • 6 figures are contradicted by another credible source. Both readings are shown below, and neither is presented as the correct one.

Battery and charging

Energy
552Wh

Unconfirmed

“ENERGY 552 Watt-hours (Wh)”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Voltage
12.8V

“VOLTAGE 12.8V (Dakota Lithium 12V batteries can be used in series for up to 48V systems)”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Rated capacity
46Ah

“STORAGE CAPACITY 46 ampere hours (Ah). Dakota Lithium batteries provide consistent power for all 46 amp hours.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Chemistry

The maker’s own documents give different figures

LiFePO4

12v 46Ah LiFePO4 Lithium Battery · retrieved 12 September 2026

“12v 46Ah LiFePO4 Lithium Battery”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Lithium Iron Phosphate technology (LiFePO4)

Dakota-Lithium-Batteries-Catalog-2023.pdf · retrieved 22 October 2026

“All Dakota Lithium batteries are engineered with Lithium Iron Phosphate technology (LiFePO4)”

Source: dakotalithium.com/wp-content/uploads/2022/11/Dakota-Lithium-Batteries-Catalog-2023.pdf

Rated charge cycles

The maker’s own documents give different figures

6,000 cycles to 80% capacity

Dakota-Lithium-Catalog-20241014-compressed.pdf · retrieved 12 September 2026

“LIFECYCLES (BATTERY LIFESPAN) Up to 80% capacity for 6,000 cycles in recommended conditions. The typical SLA has 500 cycles.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

5,000 cycles

12v 46Ah LiFePO4 Lithium Battery · retrieved 12 September 2026

“Lifecycles (battery lifespan) Up to 80% capacity for 5,000 cycles in recommended conditions. The typical SLA has 500 cycles.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

2,000 cycles at full discharge, up to 6,000 at a fifth of it

Dakota-Lithium-User-Manual.pdf · retrieved 12 September 2026

“HOW LONG WILL MY BATTERY LAST? The average lifespan of a Dakota Lithium Iron Phosphate battery depends on use. If the battery is used at maximum discharge (typically 1C) then the lifespan is typically 2,000 recharge cycles or roughly 5 – 10 years with regular use. When used at <0.2C discharge the lifespan increases, up to 6,000 recharge cycles.”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Maximum continuous discharge
50A continuous

“DISCHARGE 50 A max continuous discharge. The flat discharge voltage curve provides a 3X bigger capacity then a U1 SLA 35Ah battery.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Highest charge current it will take
23A maximum, 10A or less recommended for longest life

“CHARGE Recommend for longest life 10A or less (.2C), Max continuous 23A (.5C). 14.4 V recommended, 15 V max, BMS protection from over charging will cut off at 15V.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Charging voltage

The maker’s own documents give different figures

14.6V recommended

12v 46Ah LiFePO4 Lithium Battery · retrieved 12 September 2026

“Charge 23A max, 14.6V recommended, 15V max. Please note: this battery should be charged between 32°F to 131°F (0°C to 55°C) and with a LiFePO4 compatible charger.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

12 Volts 14.4 Volts

Dakota-Lithium-User-Manual.pdf · retrieved 12 September 2026

“DAKOTA LITHIUM BATTERY VOLTAGE RECOMMENDED CHARGING VOLTAGE RECOMMENDED CHARGING SPEED (C) 12 Volts 14.4 Volts <0.3C (3 hours or more)”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Charger the maker names
A 12V 10A charger, sold separately

“Recommended Charger 12V 10A LiFePO4 charger (Sold Separate)”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Wiring a higher-voltage string
Series wiring above 48V voids the warranty

“Dakota Lithium 12V to 48V batteries are not intended or warrantied for serial wiring applications above 48V.”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Battery care and safety

Low-temperature charging protection
No low temperature protection

“COLD TEMPERATURE CHARGING PROTECTION No low temperature protection”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

“Cold temperature charging protection No low temperature protection”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Ingress protection
water resistant at an IP 65 to IP 67 rating depending on the battery

Unconfirmed

“Use a battery box or battery tray that protects the battery from water (DL batteries are water resistant at an IP 65 to IP 67 rating depending on the battery, but terminals may corrode if repeatedly exposed to salt water, and sitting in standing water for extended periods is not recommended for batteries).”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

What the battery management system protects against
Cut-offs at 10V and 15V, plus balancing, short circuit and temperature

“Includes active BMS protection Contains a high discharge capable circuit that handles cell balancing, low voltage cutoff (10V) preventing over discharge, high voltage cutoff (15V) preventing over charging, short circuit protection and temperature protection for increased performance and longer life.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Temperatures it may be charged in

The maker’s own documents give different figures

Avoid charging below 32°F; stated cut-offs at 23°F charge and −20°F discharge

Dakota-Lithium-Catalog-20241014-compressed.pdf · retrieved 12 September 2026

“Avoid charging below 32°F. Discharge cut off at - 20'F / -20'C. Charge cut off at 23'F / - 5'C. BMS high temp cut off at 167'F / 75'C.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Charge between 32°F and 131°F — with nothing enforcing it

12v 46Ah LiFePO4 Lithium Battery · retrieved 12 September 2026

“Charge 23A max, 14.6V recommended, 15V max. Please note: this battery should be charged between 32°F to 131°F (0°C to 55°C) and with a LiFePO4 compatible charger.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Temperatures it may be run in
−4°F to 140°F

“Operating temperature Ideal for rugged & harsh environments. Much better than SLA or other lithium’s. -4°F to 140°F (-20°C to 60°C) optimal operating temps. Avoid charging below 32°F.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Size and fit

Overall dimensions

The maker’s own documents give different figures

194 × 132 × 173 mm, a U1 case

Dakota-Lithium-Catalog-20241014-compressed.pdf · retrieved 12 September 2026

“SIZE 7.6"L x 5.1" W x 6.8" H (194mm x 132mm x 173 mm). U1 size (Group 21)”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

194 × 132 × 161.55 mm; 171 mm over the terminals

12v 46Ah LiFePO4 Lithium Battery · retrieved 12 September 2026

“Size 7.6”L x 5.1” W x 6.36” H | 194mm x 132mm x 161.55 mm (171mm including terminals). U1 size (Group 21)”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Torque for the battery terminal nuts
15 ft·lb maximum

“Terminals F12 terminals (posts that screw in) with M6 size bolts. Max torque 15 ft. lbs.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Stated weight
10.5 lb (4.75 kg)

“WEIGHT 10.5 lbs (4.75 Kg). 65% lighter than a SLA or lead battery.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Terminal thread
F12 screw-in posts taking M6 bolts

“Terminals F12 terminals (posts that screw in) with M6 size bolts. Max torque 15 ft. lbs.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Connector on the battery
F12 terminals

“F12 terminals (posts that screw in) with M6 size bolts. Max torque 15 ft. lbs.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Compatibility

Trolling motor thrust it is sized for
Trolling motors of 30 lb thrust or less

“TROLLING MOTOR COMPATIBILITY Perfect for trolling motors with 30 lbs of thrust or less. For larger 12v motors the DL+ 12V 60Ah battery is recommended. For 24V & 36V trolling motors the single 24V 60 Ah or 36V 60 Ah batteries are recommended.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

What the manufacturer says it fits
Garmin and Lowrance electronics, kayaks, scooters, and off-grid power

“Used for: Garmin and Lowrance electronics, kayaks, scooters, and off-grid power”

Source: dakotalithium.com/product-category/all-batteries-by-voltage

What it replaces
A drop-in for a U1 35Ah sealed lead-acid

“Drop in Replacement Size U1 35Ah SLA U1 equivalent for physical dimensions & terminal compatibility.”

Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

Conditions and exclusions

What the warranty does not cover
Not covered: negligence, misuse, normal wear and tear

“This warranty does not cover negligence or misuse of the battery or normal wear and tear.”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Certification claims

Standards the maker claims
UN 38 certified

Unconfirmed

“CERTIFICATIONS All DL batteries are UN 38 certified. Dakota Lithium's cells are UL1642 certified and have been tested per IEC62133 standards. Meets all US & International regulations for air, ground, train, & marine transport.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

Company quality certification

The maker’s own documents give different figures

ISO 9001:2015 — a company standard, not a battery one

Dakota-Lithium-Catalog-20241014-compressed.pdf · retrieved 12 September 2026

“ISO 9001:2015 Dakota Lithium is certified by ISO 9001:2015 for lithium battery engineering, manufacturing, and quality control. This means that the battery systems available at Dakota Lithium are designed and manufactured to the highest ISO 9001:2015 engineering standards.”

Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

ISO 9001:2008 and ISO 14001:2004

Dakota-Lithium-User-Manual.pdf · retrieved 12 September 2026

“CERTIFICATIONS - Tested and certified for safety and reliability Dakota Lithium batteries are UN 38 certified and built from grade A cells. Dakota Lithium's cells are UL1642 certified and have been tested per IEC62133 standards. UN Manual of Tests and Criteria certified, and meets all US & International regulations for air, ground, marine, and train transport. Select battery models are ISO Certified ISO 9001:2008 Quality Management System & ISO 14001:2004 Environmental Management System for use in industry applications.”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Safety claim
The maker calls them 100% safe and not prone to fire

Unconfirmed

“ARE LITHIUM BATTERIES SAFE? Dakota Lithium batteries are 100% safe & reliable. Our signature chemistry, Lithium Iron Phosphate (LiFePO4), does not contain rare earth elements (like Cobalt) or heavy metals, is non-toxic, including no lead or acid, is non-corrosive, does not off gas, requires no watering or maintenance, can be placed in any orientation, and unlike other lithium batteries is not prone to exploding or catching fire due to the lack of oxide / oxygen in the LiFePO4 chemistry.”

Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

Devices documented to run on this

The figures below line up. Neither manufacturer states that this pack runs this device — that is our reading of what each of them published separately, not a claim by either of them or a test by us. Even where every stated figure agrees, these can still decide it:

  • The device’s published draw is usually a peak, not the load it holds — the two numbers are not the same kind of quantity
  • A maker’s amp-hour minimum and their reserve-capacity minimum can give different answers about the same battery
  • Conditions attached to the chemistry, such as a speed limit for running on lithium
  • Whether the pack may be wired in series at all, where the device needs 24 or 36 volts
  • The charger, which both makers put conditions on and neither supplies
  • Case size, hold-down and terminal type — fitting the space is not being secured in it

Worth confirming with the device's manufacturer or a dealer before buying.

Devices whose figures this pack does not meet

Neither maker names the other. These devices publish a draw this pack’s own maker does not rate it to deliver continuously. That is a comparison of two documents and not a manufacturer’s refusal — check both against your own equipment before deciding anything.

The motor's maker asks for 100 Ah minimum for a lead-acid or AGM battery, and 50 Ah to 100 Ah where the battery is lithium, and the battery must be able to supply 60 A of continuous current. This pack is rated 46 Ah and 50 A continuous. Which of the two figures applies turns on what is inside this pack, and its chemistry is not published in anything we hold — so the stricter one is used. The pack's maker permits the series wiring this needs: "not intended or warrantied for serial wiring applications above 48V — three of these packs is 38.4 V, four would be 51.2 V".

Neither company names the other, and this is a comparison of two documents rather than anybody's refusal.

Compared on continuous figures only: nothing here is about surge.

This pack is rated 46 Ah and 50 A continuous.

The pack's maker permits the series wiring this needs: "not intended or warrantied for serial wiring applications above 48V — three of these packs is 38.4 V, four would be 51.2 V".

Minn Kota ask for “at least a 105 amp-hour rating”, in a paragraph about lead-acid: “The motor will operate with any lead acid, deep cycle marine 12-volt battery/batteries.

Source: johnsonoutdoors.widen.net/content/zp8zgjh29h/pdf/Terrova-BT-Installation-2327132rj.pdf

Until the chemistry is established the two cannot be compared, so neither is offered as a verdict.

Sources

  • Dakota Lithium — 2024 Product CatalogManufacturer document

    Dakota Lithium

    Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf

    Retrieved September 12, 2026

  • Progressive Dynamics PD1600 Series Operation GuideManufacturer document

    Progressive Dynamics

    Source: forestriverinc.com/files/component-manuals/Electrical/Progressive Dynamics - Inverter Model PD1600 Series Operation Guide.pdf

    Retrieved September 20, 2026

  • BCI Group Sizes — Dimensional Specifications and RatingsStandards organisation

    Battery Council International

    Source: batterycouncil.org/wp-content/uploads/2023/10/BCI-Group-Sizes.pdf

    Retrieved September 11, 2026

  • Archived document

    Source: dakotalithium.com/wp-content/uploads/2023/05/Dakota-Lithium-User-Manual.pdf

    Retrieved September 12, 2026

  • 12v 46Ah LiFePO4 Lithium BatteryArchived document

    Source: dakotalithium.com/product/12v-46ah-lifepo4-deep-cycle-u1-scooter-battery

    Retrieved September 12, 2026

  • Archived document

    Source: dakotalithium.com/wp-content/uploads/2022/11/Dakota-Lithium-Batteries-Catalog-2023.pdf

    Retrieved October 22, 2026

  • All Batteries by Voltage | Dakota Lithium BatteriesArchived document

    Source: dakotalithium.com/product-category/all-batteries-by-voltage

    Retrieved October 10, 2026