Update This a battery jump pack that is used to jump start a car. Some units have an ac adapter built in so you can charge the battery in the jump start pack.
My unit has a spot to connect the ac adapter to the jump pack so you can charge the battery in the jump pack. My ac adapter has been lost. I know I have to buy a new ac adapter so I can charge my jump pack, what I do not know is if the input (from the ac adapter) is 120v 60 hzI understand that the DC output needs to dc12v. I do not understand the milliamps. The battery in the jump box is 12v 10 ah ( what ever that is). I just want a new ac adapter to charge the jump pack with that is not going to damage anything. Hi,Do not understand.
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The unit has a battery which is charged via the AC connection. The unit provides a DC output supply.Do you wish to charge the unit battery using DC?
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If so, there is this warning given in the guide'It is possible to overcharge the battery when re-charging using the DC outlet. Over charging the battery can cause permanent damage and decrease battery performance. Only charge using DC supply if a 120V AC outlet is not available. Charging the battery this way (via AC connection) also safeguards the battery as there is built in protection from overcharging and damaging the battery, which is not provided when charging the unit battery via the DC connection.by. Hi,OK I get it now. Your unit (which is not the one in the link in my answer I suppose) doesn't have an inbuilt adapter. In that case to charge a battery you need to do it a what is known as 'charge at the 10 hour rate'.
This rate is the standard charge rate for batteries. It prevents damage caused by overheating etc, which may occur at higher current values.
To get the charge current value, you divide the battery capacity, in your case 10AH by 10 giving a charging current of 1A.However charging voltage for a battery should be higher than the battery voltage so as to prevent the battery wanting to discharge back into the adapter.e,g, car 12V batteries charge at 13.8V. So ideally to charge your battery you need a DC14V 1A charger. 15V will do but keep a check that the battery doesn't overheat.by. Hi @ Dennis Green,I'd say not.You'd most probably damage the charging circuits and possibly the battery of the jump starterMost car battery chargers initially put out 4A when charging a battery, which reduces as the battery charges. They can do this as a car battery is usually a lead acid type (not as critical when charging as other types of rechargeable batteries) and there is no battery management circuits in play when you charge them directly from a car battery charger, i.e. Battery disconnected from car and charger connected directly across battery terminalsLooking at the specs for the charging adapter provided above, it only needs 0.5A to 0.7A to charge the jump starter.
Obviously it takes longer to charge the battery with this amount of current, but most probably it is suited to the type of battery (and battery management system) in the jump starter.by. Is the center tap negative or positive on the charger for the PEAK 700?Their manual lacks detail for the charging apparatus. It could be 24 volts ac, it could be 12 volts dc center tap negative, it could be 15 volts center tap positive It could be anything!I expect to see a polarity, voltage, and current rating however we see none. Also we do not know what the circuitry is inside this. Can’t make assumptions there.
Most likely they have a buffer to control impedance and some circuitry for usb etc etc. You don’t know the design or whats going on internally to the device.
Can you specify with 100% certainty? No, you can’t. Not without details.To determine a compatible charging unit, you will need the following information:1) specified center tap polarity ( positive or negative).2) voltage ( ie 12 volts 24 volts etc etc)3) specified current ( i.e. 400 mA)5) the size of the plug (i.e 2.1 mm)A part number would be great!Just guessing on the polarity is a roll of the dice. Don’t gamble.
Get the facts! It may have preventive circuitry to avoid damaging the unit if you use the wrong polarity but you don’t know. Ntfs recovery free.
Until you find the mfg specs it’s risky to just plug it in. You might wreck it. Is that an acceptable risk? No it isn’t, not for me.I have an email into the distributor and will update based on their feedback/findings.
Features:.12V 20A car lead-acid battery charger.5 protection function, safe to use: reverse connection protection,overheat protection,low voltage protection, short circuit protection,overcurrent protection.Great to use when it is a cold day and the voltage is low.Also perfect to use when the car has stopped for a long time and no electricity or the battery aging.100% Brand New and High Quality Specifications:.Color: Black (As Pictures Show).Plug Type: EU Plug.Input Voltage: 110240V.Output Voltage: 12V.Charger Current: 20A.Rated Frequency: 4763HZ.Full load efficiency: ≥ 87%. Automotive Battery Charger Jump StartersJump starters are portable battery devices used to start a vehicle when the car battery is low. They operate as jumper cables but they don't need an extra vehicle to generate the power required to boost the low or dead battery. Here are some frequently asked questions about these devices. What strength of battery should be in a jump starter?The device should have sufficient cranking amps and peak amps to start a car during an emergency.
Batteries with high peak amps generate more power for your car battery. Be sure to look for a battery with 225 or more amps and 900 or more peak amps. Simply put, it should match the starting amps of your car battery. What type of battery is in a jump starter?Jump-starter batteries are made out of lithium, which make them small and compact. High-discharge lithium-ion batteries are also available.
How do jump starters work?You hook the jumper pack to the auto battery. Be sure to match the colored alligator clamps. The black clamp is for negative and the red clamp is for positive. Turn on the power on the jump starter to transfer the current to the dead battery. Auto jump starters do not have a power on and off switch; they transfer current as soon as the clamps are connected to the terminals. What size jump starter do you need?Cars have various kinds of engines that require different cranking currents.
A rough estimate of petrol/gas engines shows that a four-cylinder car engine requires a jump starter with 150 to 200 amps. Vehicles with six- to eight-cylinder engines need 200 to 300 amps. Can jump starters be powered from cigarette lighters?Cigarette lighter outlets can be used in place of jumper cables to interconnect the 12-volt power outlets of two vehicles. The outlets eliminate the concerns that come with incorrect connections and the creation of arcs near battery terminals.
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How do you choose a jump starter?There are two types of car jump starters: plug-in units and jump boxes. Jump boxes are maintenance-free jump starters with jumper cables attached to them. Plug-in units are battery chargers that deliver enough amperage to help turn your engine on. If you want a plug-in unit, you should consider features such as the float-charge option, multiple-amperage settings, and the various charging modes.Jump boxes consist of a maintenance-free battery attached to cables in a pack. They are portable and provide the required amperage to jump start an empty battery.