Expion360 EX-EX1-12450-B (12V 450Ah EX1 SmartTalk)
SKU EX-EX1-12450-B
Expion360The Expion360 EX-EX1-12450-B (12V 450Ah EX1 SmartTalk) is a battery pack with a nominal voltage of 12.8 V, a rated capacity of 450 Ah, 5760 Wh of energy, Cylindrical, 26650, 4.5 Ah, LiFePO4, Energy Cell, M8 x 1.25 x 11.5 (10.0 Nm), charging from 0 to 45 °C and discharge from -20 to 60 °C.
Last updated: 10 October 2026
Battery and charging
- Communications bus
- Bluetooth
- Cells
- Cylindrical, 26650, 4.5 Ah, LiFePO4, Energy Cell
- Energy
- 5760 Wh
- Voltage
- 12.8 V
- Rated capacity
- 450 Ah
- Rated charge cycles
- ≥ 4000 cycles, as the datasheet prints it
- Cell arrangement
- 4S100P
- Pulse charge current
- 300 A (1s), 250 A (3s)
- Resistance
- ≤ 2.2 mΩ
- Charging voltage
- 14.6 V
- Voltage it cuts off at
- 10 V
- Working voltage range
- 10 to 14.6 V
- How fast it loses charge sitting idle
- 2 % per month
“Communication Bluetooth”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Cell Specification Cylindrical, 26650, 4.5 Ah, LiFePO4, Energy Cell”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Energy 5760 Wh”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Nominal Voltage 12.8 V”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Capacity 450 Ah”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“≥ 4000 cycles”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Series/Parallel Config. 4S100P”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Pulse Current 300 A (1s), 250 A (3s)”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Resistance ≤ 2.2 mΩ”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Charge Voltage 14.6 V”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Voltage Disconnect 10 V”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Voltage Range 10 to 14.6 V”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Cell Self-Discharge 2 % per month”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
Battery care and safety
- Ingress protection
- IP55, as the product page prints it
- Temperatures it may be charged in
- 0 to 45 °C
- Temperatures it may be run in
- -20 to 60 °C
- Temperatures it may be stored in
- 0 to 35 °C
- Housing flammability rating
- UL 94 V-0
- How to store it
- Run a discharge-recharge cycle every 3-6 months.
“Moisture Protection: IP55”
Source: web.archive.org/web/20250318012146/https://expion360.com/products/12v-450ah-ex1-smarttalk™
“Charge Temperature 0 to 45 °C”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Discharge Temperature -20 to 60 °C”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Storage Temperature 0 to 35 °C”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Case Flammability Rating UL 94 V-0”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“STORAGE Run a discharge-recharge cycle every 3-6 months.”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
Size and fit
- Weight
- 48.5 kg
- Overall dimensions
- 375 x 330 x 266 mm; the metric size is on the row beneath
- Case material
- Plastic, ABS
- Terminal thread
- M8 x 1.25 x 11.5 (10.0 Nm)
- Group the maker sells it as
- Custom EX1, as the maker's page prints it (not checked against BCI's table)
“Weight 48.5 kg”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Dimensions 375 x 330 x 266 mm”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Battery Housing Plastic, ABS”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Terminal Method M8 x 1.25 x 11.5 (10.0 Nm)”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Battery Group Size: Custom EX1”
Source: web.archive.org/web/20250318012146/https://expion360.com/products/12v-450ah-ex1-smarttalk™
Compatibility
- What the manufacturer says it fits
- Full-time RVers, off-grid living
“Best For: Full-time RVers, off-grid living, marine applications, and high-demand systems.”
Source: expion360.com/blogs/blog/which-battery-powers-your-adventure
Buying and owning it
- How it is classified for shipping
- UN3480, UN38.3
- What it is said to be best for
- RV, overland, van-build, marine and off-grid use; not a named-vehicle fitment
“UN3480, UN38.3”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Upgrade your RV, overland vehicle, van build, marine vessel, or off-grid home today”
Source: web.archive.org/web/20250318012146/https://expion360.com/products/12v-450ah-ex1-smarttalk™
Certification claims
- UL certification held by the cells
- UL 1642, File no. MH64383
- Certification claimed by the manufacturer
- Certified compliant to UL 1973 by TEi Listing Services, File no. 22D01
“Certifications UL 1642, File no. MH64383”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
“Certified compliant to UL 1973 by TEi Listing Services, File no. 22D01”
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
Sources
- Archived document
Source: cdn.shopify.com/s/files/1/0469/5742/8899/files/EX-EX1-12450-B_V.05_02132024.pdf?v=1741976244
Retrieved October 8, 2026
- 12V 450Ah EX1 SmartTalk™ – Expion360Archived document
Source: web.archive.org/web/20250318012146/https://expion360.com/products/12v-450ah-ex1-smarttalk™
Retrieved October 8, 2026
- Archived document
Source: expion360.com/blogs/blog/which-battery-powers-your-adventure
Retrieved October 10, 2026