How Well Do You Know About Batteries? Technical Facts Quiz

The given statement suggests that there is a fuse in the console of an Invacare Linx Scooter, and if this fuse is blown, it will cause the unit to stop working. Therefore, the correct answer is "True."

The statement explains that the normal recharging time for batteries is 8 to 10 hours. However, if the batteries are severely discharged, it may take up to 16 hours to fully recharge them. This suggests that the statement is true, as it provides information about the possible recharging times for both normal and severely discharged batteries.

The Invacare's NX control modules contain all of the mentioned programs: Torgue, Joystick Throw, Motor Balance, and Reverse Speed. This means that the control modules are capable of controlling and adjusting these aspects of the system, providing a comprehensive and versatile control solution.

A power wheelchair pair of batteries are connected in a series connection. In a series connection, the positive terminal of one battery is connected to the negative terminal of the other battery. This arrangement increases the voltage output while keeping the current the same. In the case of a power wheelchair, connecting the batteries in series allows for a higher voltage output, which is necessary to power the wheelchair effectively. Therefore, the statement "A power wheelchair pair of batteries are connected in a series connection" is true.

The correct answer is to fully recharge the batteries every night for 8 to 10 hours for a minimum of 20 days. This is because fully recharging the batteries ensures that they have enough power to last throughout the day. Recharging them for 8 to 10 hours allows for a complete charge, and doing so for a minimum of 20 days helps to condition the batteries and maximize their lifespan. Recharging the batteries only when needed or every other day may result in insufficient power and reduced battery life. Disconnecting the batteries before recharging is not necessary in this case.

Wiring harnesses can be tested by performing a continuity test. This test checks if there is a complete electrical connection between two points in the harness. It is done by using a multimeter to measure the resistance between different points in the wiring harness. If there is continuity, it means that the electrical path is intact and the wiring harness is functioning properly.

The fault log allows you to see the error codes using a programmer. It is a feature or tool that records and stores information about any faults or errors that occur in a system. By accessing the fault log with a programmer, you can view the specific error codes that have been logged, helping you identify and troubleshoot any issues that may be present.

The 8 amp battery charger would charge a pair of batteries the fastest because it has the highest amp rating. The higher the amp rating, the faster the charger can deliver a charge to the batteries. Therefore, the 8 amp charger would be able to provide a higher current flow, resulting in a quicker charging time compared to the other options with lower amp ratings.

Scooters, like power wheelchairs, can be affected by current rollback. Current rollback refers to the phenomenon where the scooter or power wheelchair rolls backward when trying to go uphill or when encountering an obstacle. This can happen due to various factors such as insufficient power, low battery, or the motor not being able to provide enough torque to overcome the resistance. Therefore, it is true that scooters, like power wheelchairs, can be affected by current rollback.

Fully discharging batteries before recharging power wheelchair batteries is not advised. This is because modern batteries, such as lithium-ion batteries, do not have a "memory effect" and do not need to be fully discharged before recharging. In fact, fully discharging these types of batteries can actually reduce their lifespan. It is recommended to recharge power wheelchair batteries regularly, even if they are not fully discharged, to ensure optimal performance and longevity.

All power wheelchair battery chargers have a start-up voltage because a start-up voltage is necessary for the charger to initiate the charging process. This voltage is required to activate the charger and begin supplying power to the battery. Without a start-up voltage, the charger would not be able to function and charge the wheelchair battery. Therefore, it can be concluded that all power wheelchair battery chargers have a start-up voltage.

If a gearbox is leaking grease, it indicates a problem with the seals or gaskets, which can lead to further damage to the gearbox. The leakage can cause the gearbox to lose lubrication, resulting in increased friction, heat, and wear on the internal components. Over time, this can lead to reduced efficiency, increased energy consumption, and ultimately, gearbox failure. Therefore, it is necessary to replace a gearbox that is leaking grease to prevent further damage and ensure proper functioning of the machinery.

To properly test a power wheelchair, the static battery voltage on a pair of batteries should be at least 25.0dcv or higher. This is because the power wheelchair requires a certain level of voltage to function properly. If the voltage is lower than 25.0dcv, it may indicate that the batteries are not fully charged or that there is a problem with the battery system. Therefore, it is important to ensure that the battery voltage is at least 25.0dcv before testing the power wheelchair to ensure accurate results.

The correct answer is False. A wiring harness that shows signs of corrosion should be replaced. Corrosion can cause electrical issues and lead to malfunctioning or failure of the wiring system. Replacing the harness is necessary to ensure proper functioning and prevent further damage.

Torque refers to the time it takes for the power level to increase from 0 to the set power level. This value should only change in 4-ohm increments. This statement is true because torque is indeed a measure of how quickly the power level can increase, and it should only change in specific increments.

A coupler is a component that connects the motor shaft to the gearbox shaft. It is designed to transmit power and torque between the two shafts while allowing for some misalignment and flexibility. Couplers are commonly used in various mechanical systems, including automotive, industrial, and machinery applications. They are typically made of durable materials such as steel or aluminum to ensure efficient power transmission and long-term reliability.

To assist with a slight veering in left or right direction, the program value that needs to be changed is Motor Balance. By adjusting the motor balance, the power distribution between the left and right motors can be modified, allowing for a more balanced and controlled movement. This change can help in correcting any slight veering issues and ensuring smoother and straighter movement in the desired direction.

The correct answer is 0 because changing the buzzer volume to 0 means that there will be no sound coming from the back-up alarm. This allows the user to turn off the alarm completely, providing a quieter and more customizable experience.

When testing a motor's brake circuit, a proper reading should be between 40 ohms - 80 ohms. This range indicates that the circuit is functioning correctly and the brake is able to engage and disengage properly. A reading below 40 ohms may indicate a short circuit, while a reading above 80 ohms may indicate an open circuit or a faulty brake. Therefore, the ideal range for a proper reading is between 40 ohms - 80 ohms.

Invacare Battery chargers are designed to automatically shut down after 16 hours, regardless of whether the batteries are fully charged or not. This feature is in place to prevent overcharging and potential damage to the batteries. By limiting the charging time to 16 hours, the charger ensures the longevity and optimal performance of the batteries.

Tremor Dampening sets the sensitivity of the joystick, specifically for end users with hand tremors. This feature is beneficial as it helps to reduce the impact of hand tremors on the joystick's movement, allowing users with tremors to have better control and accuracy.

A deep cycle gel cell battery is considered a recombinant type battery. Recombinant batteries are designed to be maintenance-free and have a longer lifespan compared to other types of batteries. They use a gel electrolyte instead of a liquid electrolyte, which makes them more resistant to vibration and able to withstand deep discharges without damage. These batteries are commonly used in applications that require a reliable and long-lasting power source, such as renewable energy systems, electric vehicles, and marine applications.

When load testing a battery, a battery bad voltage drop is indicated by a decrease in voltage of +2.5dcv. This means that when the battery is under load, its voltage drops by 2.5 volts in a direct current (dc) circuit. A significant voltage drop suggests that the battery is not able to maintain its voltage output properly, indicating a potential issue or weakness in the battery.

All of the mentioned factors can cause current rollback. When the torque value is too high, it can cause the motor to reverse, leading to rollback. Rough terrain can also cause the vehicle to roll back if the wheels lose traction. Front caster interference can disrupt the balance and stability of the vehicle, resulting in rollback. Lastly, exceeding the weight limits can overload the vehicle and make it difficult to maintain forward motion, causing rollback.

A reading of 7.3 ohms would indicate a problem on a 4-Pole motor because it is significantly higher than the other options. A higher resistance reading suggests that there is a fault or issue with the motor, such as a damaged or faulty winding. This could result in inefficient operation or even motor failure.

When a controller overheats and causes the system to slow to a stop, it is referred to as a "current rollback." This term is used to describe the situation where the controller reduces or rolls back the amount of current being supplied to the system in order to prevent further overheating and potential damage. This action results in the system slowing down or coming to a stop.

A 1dcv drop from a pair of battery during a static voltage test indicates that the battery capacity is at 50%. This means that the battery has lost half of its original capacity and is only able to hold and deliver half of the power it could when it was new. This drop in voltage suggests that the battery is significantly degraded and may need to be replaced soon.

To switch an Invacare scooter from "right-handed drive" to "left-handed drive," you need to turn the Reverse Pot On. This action will change the scooter's default direction of movement, allowing it to be operated with the controls on the left side instead of the right side. By turning the Reverse Pot On, the scooter's motor will be reversed, enabling it to move in the opposite direction when the controls are manipulated. This adjustment is necessary for individuals who prefer or require left-handed operation of the scooter.

A dual-mode charger is capable of charging both Gel Cell or AGM Batteries and Wet Lead Acid Batteries. This means that it can handle two different types of batteries and adjust its charging process accordingly. Gel Cell or AGM Batteries and Wet Lead Acid Batteries have different charging requirements, so a dual-mode charger is designed to accommodate both types effectively.