Free delivery exclusions apply to some bulky and large items. The threshold is momentarily raised. The magnitude of the high voltage output state of the comparator, 4, is determined primarily by the voltage reference, 2. ** total_quantity ** | ** unit_price ** / ** unit_measure **. If you wish to access a copy of the personal information about you held by tools.com, please contact us atcontact@tools.com. Additionally, starter batteries (normally lead-acid batteries used, for example, in automobiles) have a tendency to recover when disconnected from one or more loads. 2 illustrates a preferred method and location for installation of the present invention; and. Other car makes have the cigarette lighter wired to the ignition. This voltage is normally in the 11 V range. Items marked with the Dangerous Goods icon below may be subject to shipping/delivery restrictions. We believe you have a right to know about what information organisations have about you. No. Another object of the present invention is to provide a battery safety switch that, subsequently to cut-off, returns to its conducting state only when reset by the ignition switch. No. No. Another object of the present invention is to provide a battery safety switch that presents the vehicle operator with transparent functionality. These systems are also susceptible to prematurely reconnecting non-essential loads during the early battery recovery. This is typically the time that is required for heavy electrical loads, such as headlights etc., to bring the battery voltage down to the approximately 11 V range where the relay, 20, turns off. Protect your vehicle, and get extended parking mode protection. The battery safety switch maintains this state as long as the battery voltage is greater than the current threshold. However, it is possible to deliberately drain the battery beyond a point where the battery can safely start the car. The reset signal is generated by the ignition switch, and is unconditional, i.e. The automatic safety switch comprises circuitry that impedes a current flow to its protected output loads when the battery voltage has diminished to a minimum voltage that can safely start a vehicle. We have spent years curating helpful content and video guides, helping customers with their dash cams, but we understand that we can always do better. The engine recharges the battery to its fully charged state. The battery safety switch, 1, is now able to detect if low power accessories, including itself, provide a current drain that may reduce the charge level in the battery beyond a safe level. We also recommend setting the cutoff voltage higher to 12.0 or 12.2V if possible, to reduce strain on your battery. Let us show you how to install your own dash cam & accessories. At this instance the voltage reference, 2, and the comparator, 4, may begin to function in an unpredictable manner. This level may be between 0.5 V and 3 V depending on the particular voltage reference chosen. Zener diodes are unsuitable to most battery applications due to their high power consumption. Raising the threshold level makes the circuitry of the battery safety switch, 1, become more sensitive to noise. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. The above table is important when choosing a device since you want to make sure the voltage cut-off is adequate. The threshold sets the level of charge at which the battery is disconnected from one or more loads. For example, opening the car door may be enough to trigger the comparator, 4, to turn the relay, 20, off. This renders a relay drive circuit that is substantially independent of the battery voltage itself. Neither we nor any third parties provide any warranty or guarantee as to the accuracy, timeliness, performance, completeness or suitability of the information and materials found or offered on this website for any particular purpose. PROJECTA ODP500 BATTERY DISCHARGE PROTECTOR. Your order can be delivered to anywhere throughout mainland Australia by standard (road) freight delivery. Lastly, the best option to protect your vehicle's battery is to use a Cellink NEO Battery Pack. Most of these cases involve operator error. When you browse our website, you do so anonymously. Another object of the present invention is to provide a battery safety switch that exhibits a second threshold level for cut-off that ensures that the relay itself does not discharge the battery beyond a safe charge level. They do not signify that we endorse the website(s). This equates to a voltage cut-off of around 12.4V. At this point the battery starts to recover and eventually reaches a no-load voltage in the 12 V range. Goods cannot be delivered to a post office box via an express courier service. In this state, vehicles equipped with this device function identically to those vehicle that ar not equipped with this device. Turning now to FIG. of the operator of that vehicle. The following invention is generally related to safety switch devices that connect between a battery and one or more loads (electricity users) for preventing accidental or excessive discharge. The safety comes in that the battery safety switch will never de-energize its relay when a vehicle is being driven. The limiting factor here is thus the so called drop-out voltage of the relay, 20. Redundancy provides additional ruggedness by making the function of the battery safety switch insensitive to component failure. Further, the timer, 28, is reset subsequent to momentarily raising the threshold level. Refresh your browser window to try again. The voltage reference, 2, defines a stable voltage that is substantially smaller than the battery voltage. The cigarette lighter is however wired into the ignition circuit by some automobile manufacturers. This high voltage level of the output of the timer, 28, enables the fifth resistor, 30, to contribute a current to the first voltage divider, thereby raising the threshold level from the first level to the second level. Morland, U.S. Pat. An automatic battery safety switch comprising: A voltage reference having a reference voltage, a battery having a voltage, a comparator, a timer, said voltage reference being coupled to said comparator wherein a voltage threshold is established, said comparator being further coupled to a voltage divider that provides a fraction of said battery voltage, said comparator being responsive to a difference between said fraction of said battery voltage and said voltage threshold by means of generating a first state of a first signal, said first state of said first signal being coupled to a switching means in the event that said fraction of said battery voltage is greater than said voltage threshold, said switching means responding to said first state of said first signal by providing an electrical connection between said battery and at least one load; said switching means responding to a second state of said first signal by terminating said electrical connection between said battery and said at least one load when said fraction of said battery voltage is less than said voltage threshold, said second state of said first signal being indicative of a depleted battery; Said timer intermittently raising said voltage threshold, said raised voltage threshold causing termination of said electrical connection between said battery and said at least one load in the event at least one small load is excessively draining said battery, said at least one small load comprising the automatic battery safety switch. The voltage reference, 2, becomes incapable of maintaining a regulated output voltage when the difference between the battery voltage and the rated regulator voltage becomes insignificant. The relay coil was driven by an amplifier. 5,159,257, teaches the use of a system that protects a vehicular battery from being drained by auxiliary equipment. The invention protects against battery discharges that occur due to operator neglect. Dangerous goods in reference to shipping are items or substances that when transported are a risk to health, safety, property or the environment. The first factor is how often you drive your vehicle. If it is a newer battery in good condition, the dash cam will unlikely drain the battery for numerous days. If shipping to a PO Box you must select standard delivery during checkout. Protects your battery against excessive discharge when using 12V accessories ensuring the battery retains enough power for the next start. All connections can either be made to the fuse box itself, or to points in the immediate vicinity of the fuse box. These linked sites are not under the control of tools.com, and we are not responsible for the conduct of companies or organisations linked to our website. No. The reason we say that is because modern vehicles (BMW in particular) have sensitive electronic systems and from time to time error messages can show up due to the battery discharge when the vehicle is off. Therefore, it is necessary to reduce the amount of time at which the threshold level is raised. 4,493,001, was essentially an original equipment device because of the large number of connections required in the automobile. 12V 3A Timer Module 2 Seconds to 23 minutes. Services that continue to operate as normal are Click & Collect and Express Delivery. Premium freight is not available on oversized/bulky items or in all locations. If you don't select insurance you are NOT insured. Before disclosing your personal information on any other website, we advise you to examine the Terms and Conditions of those websites. In some instances it may be more desirable to maximize the time that the hazard lights remain functional than to maximize the life of the vehicle battery. Our ABN is 98 602 925 315. The multi-safer is a great option for vehicles that have an auto start/stop feature which turns off the engine at stop lights to reduce fuel consumption as it can be wired solely to a constant powered fuse if timer function isn't needed. The battery safety switch, 1, does not include the starter motor in any of its circuits. This system provides a limited use of the vehicular battery when the ignition is switched off, to prevent excessive discharge. This system does, however, provide for ease of installation but at the expense of versatility and cost. If you have any particular, unusual or sensitive enquiries with regard to privacy matters, email our Privacy Officer atcontact@tools.com, Simple instalment plans available instantly at checkout. Sheldrake essentially teaches as system incorporating two sets of delays. No. Contact the Techstore should you require more details, If ordered before 12pm Super fast delivery (limited areas). The ignition switch connection forces the battery safety switch, 1, to always be in an energized or engaged state while driving the vehicle. The second state is entered each time the timer reaches its preset time delay, normally between 4 and 12 hours. This process is described by using three separate states. 1) An Australian Visa or Mastercard debit/credit card; 2) To be over 18 years of age; 3) To live in Australia, To see Afterpay's complete terms, visit https://www.afterpay.com.au/terms, Projecta Car Battery 12V Dual Battery Discharge Protector. Items that can contain these materials include battery banks, aerosols, some tools and lithium batteries. The relay is capable of maintaining its relay contact in an energized state even though one of the current paths is broken. Once turned off they remain inoperable until the vehicles motor has been restarted. * Freight delivery times stated are for average volume items with total order weight under 5kg for metro areas in eastern states. We will provide you with the opportunity to unsubscribe from any future electronic communication. That being said while the multi-safer is a better option for modern start/stop equipped vehicles, it's still not the best. The automatic safety switch further comprises safety features that prevents it from turning off during reset, even if the battery voltage would diminish to an extremely low voltage. If you drive it daily, a typical dash cam will not drain enough power from an average car battery for a problem to occur. - the pages you accessed and documents downloaded To attain these and other objectives an apparatus is provided for implementing one or more of the features set forth above. However, given the relatively low cost of these devices, many people would rather not face this battery discharge risk. From time to time, this website may also include links to other websites. Information collected for Statistical Purposes, When you look at the tools.com website, we may record the following information for statistical purposes: Likewise, in its disengaged mode the battery safety switch does not permit a current flow to these same loads. The part of the old power cord, 46, that now connects the battery safety switch, 1, to the fuse box, 44, becomes a load connection, 47, to the battery safety switch, 1. The present invention is directed to overcoming one or more of the problems set forth above. The relay, 20, completes a circuit between the first terminal, 14, and a third terminal, 24. Most circuits of this type require a negligible mount of power and can therefore be disregarded as battery draining loads. Freight will be charged at checkout for these items. The timer, 28, raises its output voltage only momentarily, to reduce the chances of forcing the relay, 20, to turn off in error. Copyright 2012 - 2022 BlackboxMyCar. If you disagree with any part of these terms and conditions, please do not use our website. The following steps illustrate the procedure involved in using a vehicle that is equipped with a battery safety switch: 1) The vehicular operator turns off the ignition and leaves his/her vehicle unattended with one or more battery loads inadvertently energized, the battery safety switch disconnects those loads when the battery voltage is reduced to a predetermined threshold level. the current-time product. - the previous site you have visited As much a six hours may be required for a battery to fully complete its recovery after being disconnected from a heavy load. This cycle is repeated every time the timer, 28, reaches its preset time delay. Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which: FIG. The term you refers to the user or viewer of our website. Lead-acid starter batteries begin to get damaged when the nominal no-load voltage is decreased below approximately 12.1 V. This second threshold voltage level is necessary due to the small battery recovery expected from loads. Hence, lights or accessories powered by the battery safety switch can never be affected by temporary voltage sags or other problems in the electrical system of the vehicle while the vehicle is driven. 3 illustrates a so called signal flow graph of the process implemented by the battery safety switch. One object of this invention is to provide a battery safety switch which prevents inadvertent battery drainage of a vehicular battery, thus extending the expected battery life. The third state illustrates a condition in which the battery safety switch de-energizes its internal relay. 12V Battery Excessive Over Discharge Protection Controller 30A Switch Module Car. tools.com provides links to websites outside of this site. The battery safety switch, 1, connects in series with the battery, 42, and a fuse box, 44, normally located under the dashboard inside the passenger compartment of the vehicle, 40. Automatic safety switch for preventing accidental battery discharge, GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER, CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY, Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries, Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. FIG. Use a Cellink NEO Battery Pack to protect your car's battery and prevent battery discharge today. A first resistor, 6, forms a first voltage divider with a second resistor, 8, and the voltage reference, 2. a select few circuits in a vehicle with insufficient protection. Nos. Use with portable fridges, air compressors and flood lights. Please allow extra time for delivery to western states. It should be noted that the battery is protected from being depleted of charge to such an extent that permanent damage occurs. For unusually large or bulky orders our customer service staff may contact you if any additional freight costs are needed.
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