The BigBattery EAGLE 2 24V 64Ah is a battery pack with a continuous discharge of 100 A, a peak of 200 A (Max 5 seconds) and an ingress rating of IP67 / NEMA 6.
Last updated: 21 September 2026
Battery and charging
- Charging voltage range
- 27.8 – 29V, as the maker suggests
- Maximum charge voltage
- 29.2V maximum
- Communications bus
- CANBus
- Rated charge cycles
- 4000-6000 cycles at 80% DOD, measured at 0.5C
- Cell arrangement
- 8S
- Maximum continuous discharge
- 100A continuous, 2560W
- Peak discharge
- 200A (Max 5 seconds)
- Series and parallel limit
- Up to (10) Parallel
- Highest charge current it will take
- 64A charging
- Working voltage range
- 24 – 28.8V
Row from the maker’s page: “Charging Voltage Range” | “27.8 – 29V”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
“Max Charge Voltage 29.2V 29.2V 58.4V Operating Voltage Range 24V - 28.8V 24V - 28.8V 48V - 58.8V Suggested Low Voltage Cutoff 24V - 25.4V 24V - 25.4V 48V - 50.8V BMS Cutoff Range 21V - 23.5V 21V - 23.5V 42V - 47V Cell Configuration 8S 8S 16S”
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
“Max Charge Voltage: 29.2V Operating Voltage Range: 24 – 28.8V”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Communications” | “CANBus”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
“the EAGLE 2 has a lifespan of over 10 years and is engineered to withstand more than 4000 - 6000 cycles at 80% Depth of Discharge (DOD) at a rate of 0.5C.”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
Row from the maker’s page: “Cell Configuration” | “8S”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
“Max Cont. Discharge Current 100A 100A 60A Max Continuous Power 2560W 2560W 3072W Max Discharge Peak Current 200A (Max 5 seconds) 200A (Max 5 seconds) 200A (Max 3 seconds) Max Charge Current 64A 64A 30A”
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
Row from the maker’s page: “Max Discharge Peak Current” | “200A (Max 5 seconds)”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Max Connections” | “Up to (10) Parallel”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
“Max Cont. Discharge Current 100A 100A 60A Max Continuous Power 2560W 2560W 3072W Max Discharge Peak Current 200A (Max 5 seconds) 200A (Max 5 seconds) 200A (Max 3 seconds) Max Charge Current 64A 64A 30A”
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
“Operating Voltage Range: 24 – 28.8V Suggested Low Voltage Cutoff: 24 – 25.4V”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Battery care and safety
- Where its BMS cuts off
- 21 – 23.5V, where the pack's own protection acts
- Suggested low-voltage cut-off
- 24 – 25.4V, suggested for your equipment
- Ingress protection
- IP67 / NEMA 6
- Temperatures it may be charged in
- -4°F – 131°F (-20°C – 55°C)
- Temperatures it may be run in
- -4°F – 140°F (-20°C – 60°C)
Row from the maker’s page: “BMS Cutoff Range” | “21 – 23.5V”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Suggested Low Voltage Cutoff” | “24 – 25.4V”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Protection Rating” | “IP67 / NEMA 6”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Charge Temperature Range” | “-4°F – 131°F (-20°C – 55°C)”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Row from the maker’s page: “Discharge Temperature Range” | “-4°F – 140°F (-20°C – 60°C)”
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Other findings
- Maximum ambient for discharge
- above 55°C (131°F)
- Maximum parallel units
- Ten in parallel, and it has a heater
- Recommended current rate
- 0.5C, half the rated maximum
- Self heating behaviour
- Heats to above 0°C first, then charges
- Sleep mode timeout
- Sleeps after 120 hours with no real current
- State of charge LED bands
- 4 LEDs 90-100%, 3 LEDs 70-89%, 2 LEDs 25-69%, 1 LED 0-24%
- Storage duration by temperature
- 3 months at -5-35 °C, 12 months at 0-25 °C
- Storage maintenance charge
- 28V at 50A CC/CV, stopping at 5A; every 9, 6 or 3 months by temperature
- Storage state of charge
- At least 50%, and a full pack taken down to 80% first
“charge nor discharge battery when ambient temperature is above 55°C (131°F).”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“Max Connections Up to (10) Parallel Up to (10) Parallel Up to (10) Parallel Protection Rating IP67 IP67 IP67 Communications No CANBus CANBus Heating Function Yes Yes Yes”
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
“battery charge and discharge current at a 0.5 C-rating.”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“The battery can be charged in freezing temperatures (-20°C / -4°F) thanks to an automatic self-heating function. When charging is detected, heating will start until the battery temperature is above 0°C (32°F) and then charging will start.”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“If currents above these values are not detected for 120 hr., the battery enters Sleep Mode.”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“4 LEDs on = 90% - 100% 3 LEDs on = 70% - 89% 2 LEDs on = 25% - 69% 1 LEDs on = 0% - 24%”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“Storage Temp. Range (SoC >50%) 23ºF - 95ºF (-5ºC - 35ºC) (Max 3 months) 32ºF - 77ºF (0ºC - 25ºC) (Max 12 months)”
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
“≤20ºC Once / 9M 28V 50A CC/CV Charging to 28V Cut-Off Current: 5A 24V EAGLE 2 20ºC ~ 30ºC Once / 6M 30ºC ~ 40ºC Once / 3M”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
“charge them to at least 50% SOC. Do not store batteries that are fully discharged. In the case of a fully charged battery, it should be discharged to 80% SOC before it is stored.”
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
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.
- Minn Kota Terrova 80 lb (60" shaft, wireless remote)Figures compared — they do not meetView device: Minn Kota Terrova 80 lb (60" shaft, wireless remote) →
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. For best results, use a deep cycle, marine battery with at least a 105 amp-hour rating.” This pack is LiFePO4. For a lithium pack the same maker's thrust-to-capacity table names a different figure for this motor: “80 lb Lithium 100–125Ah 2–3 hours Best for long days” Those are two of Minn Kota's own numbers for two different chemistries, and an amp-hour rating does not carry from one to the other, so they are set out here rather than compared. This pack is rated 64 Ah.
Source: johnsonoutdoors.widen.net/content/zp8zgjh29h/pdf/Terrova-BT-Installation-2327132rj.pdf
Source: minnkota.johnsonoutdoors.com/us/blog/selecting-best-trolling-motor-battery
Sources
- BigBattery — EAGLE 2 24V 64AhManufacturer battery page
BigBattery
Source: bigbattery.com/products/24v-eagle-2-lifepo4-64ah-1-63kwh
Retrieved September 15, 2026
- Archived document
Source: bigbattery.com/wp-content/uploads/2024/04/EAGLE2Manual-Digital-V1.pdf
Retrieved September 15, 2026
- Archived document
Source: bigbattery.com/wp-content/uploads/2024/01/EAGLE2-SpecSheet-1.1-2.pdf
Retrieved September 15, 2026