The BigBattery EAGLE 2 36V 40Ah is a battery pack with a continuous discharge of 80 A, a peak of 200 A and an ingress rating of IP67 / NEMA 6.
Last updated: 15 September 2026
Battery and charging
- Charging voltage range
- 41.7 – 43.2V, as the maker suggests
- Maximum charge voltage
- 43.8V maximum
- Communications bus
- CANBus
- How the cells are arranged
- 12S
- Highest charge current it will take
- 40A
- Maximum continuous discharge
- 80A
- Peak discharge
- 200A (Max 3 seconds)
- Series and parallel limit
- Up to (10) Parallel
- Working voltage range
- 36 – 43.2V
“Charging Voltage Range: 41.7 – 43.2V Max Charge Voltage: 43.8V”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Max Charge Voltage: 43.8V Operating Voltage Range: 36 – 43.2V”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Protection Rating: IP67 / NEMA 6 Communications: CANBus Self-Heating: Yes”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Cell Configuration: 12S Max Continuous Discharge Current: 80A”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Max Charge Current: 40A Charge Temperature Range: -4°F – 131°F (-20°C – 55°C)”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Max Continuous Discharge Current: 80A Max Continuous Power: 3072W”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Max Discharge Peak Current: 200A (Max 3 seconds) Max Charge Current: 40A”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Max Connections: Up to (10) Parallel Protection Rating: IP67 / NEMA 6”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Operating Voltage Range: 36 – 43.2V Suggested Low Voltage Cutoff: 36 – 38.1V”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
Battery care and safety
- Where its BMS cuts off
- 31.5 – 35.3V, where the pack's own protection acts
- Low-voltage cut-off they suggest
- 36 – 38.1V, 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)
“BMS Cutoff Range: 31.5 – 35.3V Cell Configuration: 12S Max Continuous Discharge Current: 80A”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Suggested Low Voltage Cutoff: 36 – 38.1V BMS Cutoff Range: 31.5 – 35.3V”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Protection Rating: IP67 / NEMA 6 Communications: CANBus Self-Heating: Yes”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Charge Temperature Range: -4°F – 131°F (-20°C – 55°C) Discharge Temperature Range: -4°F – 140°F (-20°C – 60°C)”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
“Discharge Temperature Range: -4°F – 140°F (-20°C – 60°C) Optimal Discharge Temperature Range: 59°F – 95°F (15°C – 35°C)”
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
United States — CPSC
We did not match this product to any recall in the data we hold from CPSC, last checked September 19, 2026. Check CPSC’s own search: cpsc.gov/Recalls
United States — NHTSA & Coast Guard
We did not match this product to any recall in the data we hold from NHTSA or the US Coast Guard, which we hold records from but do not yet check on a schedule. Check NHTSA’s own search: nhtsa.gov/recalls
European Union
We did not match this product to any recall in the data we hold from the European Union, last checked September 19, 2026. Check the European Union’s own search: ec.europa.eu/safety-gate-alerts/screen/search
United Kingdom
We did not match this product to any recall in the data we hold from the United Kingdom, last checked September 19, 2026. Check the United Kingdom’s own search: gov.uk/product-safety-alerts-reports-recalls
Australia
We did not match this product to any recall in the data we hold from Australia, last checked September 14, 2026. Check Australia’s own search: productsafety.gov.au/recalls
Canada
We did not match this product to any recall in the data we hold from Canada, last checked September 19, 2026. Check Canada’s own search: recalls-rappels.canada.ca/en/search
France
We did not match this product to any recall in the data we hold from France, last checked September 19, 2026. Check France’s own search: rappel.conso.gouv.fr
None of these is a statement that the product is safe or unrecalled — only that our searches found nothing. Each regulator’s own search is linked above.
Compatible platforms
No sourced compatibility evidence is on file for this battery yet.
Sources
- BigBattery — EAGLE 2 36V 40AhMANUFACTURER BATTERY PAGE
BigBattery
Source: bigbattery.com/products/36v-eagle2-1-5kwh-lifepo4-battery-with-heater-and-comms
Verified September 15, 2026