Batteries are an essential part for the correct operation of a sit on lawn mower and are often and inadvertently overlooked. Commercial and residential machines need appropriate battery maintenance and care to provide effortless engine starting and effective operation. Failure to provide the appropriate maintenance and care of the sit on lane mower battery could lead to subsequent and significant loss of battery power and as of consequence, premature battery break down.
The starter motor on a sit on lawn mower starts the engine and will require a battery and alternator to operate it effectively. A properly maintained battery will provide between 3 to 5 years of service. Therefore, it would be advisable to understand the basic principles of battery maintenance. Here are a couple of tips for extending the life of a sit on lawn mower battery:
1. Always think of safety when working with batteries. Remove jewellery including watches to prevent short-circuiting between the metal parts of a sit on lawn mower and the positive terminal of the battery, which may cause serious skin burns. Charge a battery in a well-ventilated area, as hydrogen gas is emitted and is highly explosive. Wear safety glasses when handling or recharging batteries as sulphuric acid from a battery will damage eyes. Wear polyester overalls or clothing, as it is not affected by battery acid if accidentally splashed. Clean any spillages from batteries immediately.
2. When a machine is not in use, disconnect the battery to prevent ‘parasitic’ power draining of the battery through switches and any ancillary equipment connections. Make sure all electrical switches are in the off position. Always disconnect the negative cable first from the battery followed by the positive. When storing the machine over long periods, for example through the winter, disconnect and remove the battery and store in a dry and warm environment.
3. Periodically check the liquid electrolyte levels of lead acid (wet cell) batteries especially in warm weather conditions. Ensure the electrolyte level is approximately 8mm above the internal battery plates but below the neck of the fill tube to allow for expansion of the liquid. Top up levels using distilled water only. If overfilled, caution must be exercised, as the spillage will contain acid.
4. Soiled or corroded battery cable terminals may reduce battery power passing to the starter motor etc. Disconnect the battery from its cable connections and clean the terminals with a wire brush. Try to avoid liquid cleaners unless they are approved liquids for cleaning battery terminals. Ensure the terminals are dry before reconnecting them to the battery.
5. Check for bulges in the battery housing or liquid electrolyte leaks – use caution when inspecting the battery and wear gloves to protect hands from potential hazards. Damaged batteries should be removed and replaced immediately. Always dispose of sit on lawn mower batteries responsibly. If the battery will not retain its charge after several hours then serious consideration must be given to replacing it. Weak starting or uneven engine running might be a further cause of poor battery performance. Consult the sit on lawn mower’s manufacturers instructions for details of the correct battery type etc., before purchasing a new one.
It is paramount to maintain all aspects of a sit on lawn mower including the battery. Careful and proper maintenance will provide a more efficient machine that will help minimize potential problems in the future.