Sorry, This item has been discontinued
Please see the CTEK XS 0.8.

Your ideal maintenance charger

The XS 800 is above all an optimal maintenance charger for seasonal vehicles with batteries up to 100Ah. It easily charges smaller 12V batteries common to motorbikes, lawnmowers and jet skis.

Features & Benefits

  • Three step, fully automatic switch mode model.
  • Charges lead-acid batteries (Wet, MF, GEL and AGM) from 1.2Ah to 32Ah, 1.2-100Ah maintenance charging.
  • Maintenance pulse charging increases battery life and gives superb performance.
  • Charges even drained batteries.
    Pulse recover of slightly sulphated batteries.
  • Low back current drain, low ripple and input voltage independent (170-260V).
  • High efficiency: 85%
  • Delivered with two interchangeable connection leads, one with clamps, and one with eyelet terminals.
  • The charger can be connected for months, ideal for seasonal vehicles.
  • Compact design with mounting holes for permanent assembly.
  • 2 year warranty.



  • Motorbike
  • Snowmobile
  • Car
  • Lawnmower
  • Vintage Car
  • Motorboat
  • Four Wheeler
  • Agricultural Machinery
  • Moped
Model XS 800
Input voltage AC 170-260VAC, 50-60Hz
Output voltage Nominal: 12V
Efficiency 85%
Charging voltage 14.4V
Charging current 0.8A max
Back current drain* <1mA
Ripple** 10mV rms, 12mA (2%)
Ambient temperature -20C to +50C, output power is reduced automatically at higher temperatures.
Type of charger Three step, fully automatic IoUoUp, switch mode with pulse maintenance.
Type of batteries 12V lead-acid batteries (Wet, MF, AGM and GEL)
Battery capacity 1.2-32Ah (1.2-100Ah maintenance charging)
Dimensions (L x W x H) 142x51x36mm
Insulation IP 65 (splash and dust proof)
Weight 0.3kg

*) Back current drain is what drains the battery if the charger is connected without the power cord connected. XS 800's extremely low back current drain corresponds to < 1Ah per month. Many other chargers have 1Ah per day.

**) Ripple denotes the amount of interference there is to the current and voltage. A high current ripple heats the battery and shortens its life. A linear charger has a current ripple of 70 - 400% which is much larger than the maximum 5% for a modern sealed battery. Voltage ripple could harm other equipment, which is connected to the battery. XS 800's ripple is only 2%. The battery gains a long service life and there is no risk of damage to other electronic devices connected to the battery.

Product Options
CTEK XS 800 CTEK XS 800 £36.99 Discontinued

  Connection lead with cigarette plug £9.99
  Connection lead with eyelet terminals
Available in diameters of 6.4mm or 8.4mm. Eyelet terminals