X-ALT APPLICATION No.2

This application shows an installation comprising of a three channel  X-ALT Skipper & X-SPLIT with a single alternator and a 3 battery bank system. The output of the alternator is split between the 3 batteries by the "X-SPLIT". If any of the the sensed batteries is depleted i.e. the battery voltage is less than 12.6 (25.2) volts the Skipper will go into boost mode increasing the alternator output to approximately 14.8 (29.6) volts for lead acid batteries [maximum but maybe less depending on the speed of the alternator], this will recharge the batteries faster than a stand alone alternator. Though the "Skipper" will also work with normal diode splitters precautions must be taken so that any voltage drop caused by the diode splitter and cabling is not in excess of 1.2/1.5 volts. As the "Skipper" will attempt to compensate for the voltage drop it will increase the output of the alternator to over come the voltage drop and if the voltage drop is to high it may cause the "Skipper" to go into a high battery alarm or alternator output alarm condition . Under these conditions the "Skipper" will switch off and the charging system will remain in float control only. When in float mode the batteries may only see a charging voltage of 13/ 13.4 volts if a diode splitter is used instead of 14/14.2 volts in the case of an "X-SPLIT". This low loss means that the output of any additional charging source is used more effectively as the losses are minimal and if used as a means of maintaining a charge to the batteries whilst the engine is not in use it can be left connected permanently.
As the "Skipper" relies on seeing the alternator output at all times the use of 1/2/both switch is not recommended as a means of charge splitting as incorrect switch selection could mean a high output from the alternator and a safety alarm condition. Mechanical relays could also prove a problem especially where the split charge relay has a in built delay.
When the engine is stationary the second charging source can be employed to charge the batteries but it must be switched off for at least 5 minutes prior to starting the engine, this will allow the batteries to assume true float voltage and will enable the "Skipper" to measure the true battery voltage. If the second charging source is a solar cell or wind generator it is recommended that it is not used at the same time as the engine is running, as the "Skipper" relies on seeing the true alternator output voltage for alternator control, the output from second charging source could mask the alternator's output and cause the "Skipper" to control incorrectly. The system can be increased to a  4 or more battery system if required by using additional "X-SPLITS" to split charge the charging source, but as the "Skipper" can only sense a maximum of three batteries a choice will need to be made as to the selected batteries. If sensing of more than three batteries is required and you have a requirement for a quantity of units contact the sales office for assistance as we may be able to help.. Click on hyper link alternators for a list of known alternator configurations, if your alternator is not listed or go to the installation page for further assistance or contact technical support at the address below.
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