Power 26-104
Attention - discontinued model! Click here for the latest model


Power 26-104

Attention - discontinued model! Click here for the latest model

$ 2,599.00
plus shipping charges

Immediate shipping
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Product description

  • High-performance lithium battery 2,685 Wh
  • Rated voltage 25.9 V, charge 104 Ah
  • Weight 24,3 kg
  • Including battery management system with integrated protection against overcharging, short circuit, deep discharge, polarity reversal, overheating and submersion
  • Waterproof to IP67

Ordering information

  • Item number: 2103-00  | EAN: 4260113692608
  • Equipment included: Power 26-104 high-performance lithium battery 2,685 Wh (25.9 V), data cable for connection to Cruise drives
  • Warranty: 2 years for non-commercial use
  • We currently deliver to the following countries
  • California residents please click here for Prop 65 warning

  • Power 26-104

    Power 26-104 High-performance Lithium Battery Power 26-104 High-performance Lithium Battery

    The perfect high-end lithium battery for the Cruise. Or for your on-board power supply.

    Choosing lithium means choosing high performance. Choosing the Power 26-104, also means choosing an unrivalled level of professional safety. The Power 26-104 is equipped with a comprehensive safety system combining the requirement for general operating safety with safety in maritime use.

    Thanks to plug&play, the Power 26-104 can be installed and activated in a few short steps. And with a 5-stage safety concept it is arguably the safest battery of its kind for boats.

    Its long life expectancy and low capacity losses are convincing.

    Power 26-104 - Benefits:

    • Up to 70% less battery weight than AGM or gel batteries.
    • Maximum safety thanks to 5-tier safety system, including battery management system with one-fault safety.
    • Simple operation.
    • Waterproof to IP67.
    Power 26-104 High-performance Lithium Battery

    Integrated information system:
    Identifies the battery and communicates with the Cruise on-board computer.
    Waterproof housing and waterproof plug connections (IP67)
    Plug & play with the Cruise on-board computer:
    plug the cable in, “electronic handshake”, finished.
    Water sensor protection:
    recognises when the battery is submerged and automatically switches the voltage off at the poles. Prevents the potential formation of electrolytic gas in the event that water gets into the boat.
    Waterproof venting
    balances differences in temperature and pressure without limiting waterproof qualities.
    Double protection – isolatable poles:
    for safe transport and installation And preventing unintentional discharging when stored for long periods
    Safety cells with multiple protection:
    the individual battery cells consist of welded steel cylinders each of which is equipped with several hardware safety mechanisms.
    High-performance lithium battery cells:
    top quality, exclusively from fully automated Japanese production.
    Mature intelligent battery management system (BMS):
    the BMS provides additional protective and balancing functions for long battery life. All safety functions have redundant backup thanks to one-defect safety.

  • Specifications

    Power 26-104 Technical Data

    General features
    Capacity 2,685 Wh
    Nominal voltage 25.9 V
    Final charging voltage 29.05 V
    Final discharging voltage 21.0 V
    Nominal charge 104 Ah
    Maximum discharge rate 180 A Safety function against short-circuit, must not be used as starter battery
    Maximum discharge rate at nominal voltage 4,500 W
    Weight 24.3 kg
    Dimensions (L x H x B) 577.5 mm x 218.5 mm x 253.5 mm
    Volume 32 l
    Battery chemistry Li NMC
    Benchmark information
    Energy density (weight) 110 Wh/kg
    Energy density (volume) 84 Wh/l
    Price-performance EUR 0.93 /Wh
    Power density (weight) 185 W/kg
    Power density (volume) 141 W/l
    Lifetime data
    Cycle lifetime 800 cycles with 100%
    discharge depth at 25°C
    result in capacity loss of approx. 25%
    Average annual capacity loss Approx. 4% at 25°C ambient temperature
    Usage information
    Cell operating temperature -20°C to +60°C Battery protects itself
    Cell charging temperature   0°C to +55°C Battery protects itself
    Temperature (storage) -30°C to +55°C
    Typical storage time at 50% SOC 1 year When switched off
    Max. connections 2S8P or 1S16P Please contact Torqeedo if larger battery banks required
    Max. quick charge 100 A Charging time < 1.2 hours
    Protection class IP67 Waterproof, can be submerged to depth of 1 metre for 30 minutes without damage
    Battery composition
    Number of cells 336
    Cell housing Steel cylinder safety cells
    Capacity per cell 2.25 Ah
    Nominal voltage per cell 3.7 V
    Cell connection 7s48p
    Battery management system and safety
    On-off switch Yes Via Cruise or motors or on/off switch
    Cell balancing Yes Increases the battery lifetime
    High-current and short-circuit protection Yes 4-level safety cut-out mechanism to protect against short-circuits and overcurrent
    Deep discharge protection Yes, cut-off at < 2.7 V per cell,
    charge protection at < 2 V per cell
    Protection against incorrect charging Yes 3 protection levels against overcharging
    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 Important for connecting multiple batteries into battery banks
    Data logging Yes Important for warranty information

    Technical Drawing


  • Tips

    Power 26-104 FAQ

    • What type of appliance can I use the Power 26-104 with?

      In principle any 24 V appliance that you otherwise operate on board, or 12 V, 110 V and 230 V appliances with a voltage converter.

    • What is the life expectancy of the Power 26-104?

      The life expectancy of a lithium battery depends on calendar age and cycle lifetime. In recreational use the cycle lifetime hardly plays a role since a relevant number of cycles (over 500) is usually never even almost achieved.
      In contrast, calendar ageing plays a significant role. Lithium batteries begin to age from the moment they are manufactured. This ageing process is accelerated the more/more frequently the battery is exposed to high temperature. Lithium batteries may also be used at high temperatures, but they should be stored in a cool place as often as possible. The annual capacity loss over time is approx. 4% (at 25 °C ambient temperature).

    • I rarely use my battery and store it for long periods. Will this damage a Power 26-104?

      The new Power 26-104 models (2015) have an automatic deactivation mode. The battery's electronics will be switched off 48 hours after the last use and the battery will be put into deep-sleep mode. The battery can remain in this mode for up to a year provided it is charged to at least 30% of capacity. Even so, a check should be made on the battery's charge status every two months when stored for long periods.
      The battery should be quickly recharged after every deep discharge. Discharging a battery fully and then storing it for a long time (without charging it) should be avoided at all costs since that damages any type of battery.

    • How long does the Power 26-104 take to fully charge?

      Charging takes approx. 11 hours using the charger supplied (from complete discharge, i.e. 100% depth of discharge).

    • Why does the Power 26-104 have a discharge limit?

      One of the advantages of lithium batteries is that they can supply very high currents. The disadvantage of this is that lithium batteries can cause considerable damage in the event of a short circuit – unless such high short-circuit currents can be avoided. This is an important safety function of the Power 26-104 and is part of the BMS. If higher discharge limits are required, several batteries can be connected in parallel, which multiplies the discharge limit.

    • Can I connect several Power batteries together to form a battery bank?

      Yes, that is possible. The integrated battery electronics recognise and classify the batteries.

    • What is the warranty on the Power 26-104?

      As with all our products, we give a 2-year warranty from the date of purchase for non-commercial use.

    • Is the Power 26-104 suitable for the installation of battery banks?

      The Power 26-104 is ideal for the installation of battery banks. You can choose between a serial or parallel connection. Please make sure to read the operating instruction for more details.

      Figure – parallel connection parallel connection Figure – parallel connection parallel connection

      Two Power 26-104s can be wired in series by connecting the positive pole of one battery with the negative pole of the other . The consumer appliance is then connected to the positive pole of the first battery and the negative pole of the second. The figure shows how 2 batteries have been wired together in series (2S1P connection).

      Figure – serial connection serial connection Figure – serial connection serial connection

      Several pairs of serially wired batteries can be connected with each other in parallel (2S2P connection) in order to increase the capacity of the battery supply. Up to 8 pairs of serially wired batteries can be connected in parallel in this way.

      Figure – serial and parallel connection serial and parallel connection Figure – serial and parallel connection serial and parallel connection