Torqeedo Power 24-3500 Battery

Torqeedo's Power 24-3500 battery is the perfect high-end battery for Torqeedo Cruise Electric Outboard Motor, or for your on-board power supply. The electric outboard battery is equipped with a market-leading, five tier safety system that combines the requirement for general operating safety with safety in maritime use. Thanks to plug and play, the Torqeedo battery can be installed and activated in a short few steps.

The battery management system has integrated protection against overcharging, short circuit, deep discharge, polarity reversal and submersion.

Key Features:
Maximum safety thanks to a five tier safety system, including a battery management system with one-fault safety.
Simple operation.
Up to 70% less battery weight in comparison with AGM or gel batteries.
Waterproof to IP67 standards.

General Specifications:
Capacity: 35075 Wh.
Nominal Voltage: 25.2V.
Final Discharging Voltage: 21V.
Nominal Charge: 139.2Ah.
Maximum Discharge Rate: 139.2A.
Maximum Discharge Rate at Nominal Voltage: 4,660W.
Weight: 25.3kg.
Dimensions: 577.5mm x 218.5mm x 253.5mm.
Volume: 32L.
Battery Chemistry: Li NMC.

Benchmark Information:
Energy Density (weight): 138Wh/kg.
Energy Density (volume): 110 Wh/l.
Price Performance: 0.86 EUR/Wh.
Power Density (Weight): 185 W/kg.
Power Density (Volume): 141 W/l.

Lifetime Data:
Cycle Lifetime: 800 cycles with 100% discharge depth at 25C. 
Average Annual Capacity Loss: Approximately 4% at 25C ambient temperature.

Usage Information:
Cell Operating Temperature: -20C up to +60C - battery protects itself.
Cell Charging Temperature: 0C up to +45C - battery protects itself.
Temperature (Storage): -30C up to +55C.
Maximum Connections: 2S8P or 1S16P.
Maximum Quick Charge: 100A in under 90 minutes.
Protection Class: IP67 - waterproof, can be submerged to a depth of 1 metre for 30 minutes without damage.

Battery Composition:
Number Of Cells: 336.
Cell Housing: Steel cylinder safety cells.
Capacity Per Cell: 2.875 Ah.
Nominal Voltage Per Cell: 3.7V.
Cell Connection: 7s48p.

Battery Management System & Safety:
On-Off Switch: Yes.
Cell Balancing: Yes - increases the battery lifetime.
High Current and Short Circuit Protection: Yes.
Deep Discharge Protection: Yes, cut off at < 2.7V per cell, charge protection at < 2V per cell.
Protection Against Incorrect Charging: Yes.
Protection Against Polarity Reversal: Yes.
Individual Cell Voltage Monitoring: Yes.
Current Interruption Device (CID) For Each Cell: Yes.
Safety Vent For Each Cell: Yes.
Cell Temperature Monitoring: Yes.
Temperature Monitoring Of Battery Electronics: Yes.
Automatic Shutdown In The Event Of Submersion: Yes.

Information System:
Interface: RS485.
Electronic Battery Identification: Yes.
Data Logging: Yes.

Warranty Length:
2 Years for non-commercial use.

Useful Links:

Shop our full range of Electric Outboard Motors.
Shop our full range of Torqeedo Electric Outboard Motors.
Shop our full range of electric outboard batteries.
Read our Electric Outboard Engines blog post.