Car battery charger Output

Discover which charger is best for your application

A good battery charger provides the base for batteries that are durable and perform well. In a price-sensitive market, chargers often receive low priority and get the “after-thought” status. Battery and charger must go together like a horse and carriage. Prudent planning gives the power source top priority by placing it at the beginning of the project rather than after the hardware is completed, as is a common practice. Engineers are often unaware of the complexity involving the power source, especially when charging under adverse conditions.

Figure 1: Battery and charger must go together like horse and carriage.
One does not deliver without the other.

Chargers are commonly identified by their charging speed. Consumer products come with a low-cost personal charger that performs well when used as directed. The industrial charger is often made by a third party and includes special features, such as charging at adverse temperatures. Although batteries operate below freezing, not all chemistries can be charged when cold and most Li-ions fall into this category. Lead- and nickel-based batteries accept charge when cold but at a lower rate. (See BU-410: Charging at High and Low Temperature)

Some Li-ion chargers (Cadex) include a wake-up feature, or “boost, ” to allow recharging if a Li-ion battery has fallen asleep due to over-discharge. A sleep condition can occur when storing the battery in a discharged state in which self-discharge brings the voltage to the cut-off point. A regular charger treats such a battery as unserviceable and the pack is often discarded. Boost applies a small charge current to raise the voltage to between 2.2V/cell and 2.9V/cell to activate the protection circuit, at which point a normal charge commences. Caution is required if a Li-ion has dwelled below 1.5V/cell for a week or longer. Dendrites may have developed that could compromise safety. (See BU-802b: What does Elevated Self-discharge Do? in which Figures 5 examines the elevated self-discharge after a Li-ion cell had been exposed to deep discharge. See also BU-808a: How to Awaken Sleeping Li-ion.)

Lead- and lithium-based chargers operate on constant current constant voltage (CC/CV). The charge current is constant and the voltage is capped when it reaches a set limit. Reaching the voltage limit, the battery saturates; the current drops until the battery can no longer accept further charge and the fast charge terminates. Each battery has its own low-current threshold.

Fstop Labs Intelligent Battery Charger Car Charger 6A Output for DJI MAVIC PRO
Photography (Fstop Labs)
  • Input: 12-14V
  • Output: 13.2V 6A (Max.)
  • Charging Time: about 50 minutes
  • Charging Temperature: 0-40 Celsius Degree
NOCO NOCO Genius GENM1 4 Amp 1-Bank Waterproof Smart On-Board Battery Charger
Automotive Parts and Accessories (NOCO)
  • 4 Amp (4 Amp per bank) Smart On-Board Battery Charger for 12-volt batteries; charges and maintains all types of lead-acid batteries from 20-120Ah, including Wet...
  • Designed for safety; Safe for anyone to use. Does not generate sparks, and protects against reverse battery hookup, short circuit, open circuit, overheat, overcurrent...
  • Brings batteries back to life; an advanced recovery mode repairs damaged areas of the battery to provide longer, healthier battery performance. Recovers deeply discharged...
  • Rapid Charging Technology; charges batteries 2X faster than traditional battery chargers, and a lightweight, compact design
  • The most advanced charger ever; It features innovative and advanced technology that makes charging easy and simple. The charger makes important charging decisions...
Battery Pack RAVPower Portable Charger 22000mAh 5.8A Output 3-Port Power Bank (2.4A Input, Triple iSmart 2.0 USB Ports, Li-polymer Battery) Portable Battery Charger For Smartphones Tablets - Black
Wireless (RAVPower)
  • Highest Output for 3 Devices Pocket Juice: 3 USB ports for a total current output of 5.8A (2.4A max per port). The Power Bank can charge two iPads and one iPhone...
  • Weeklong 22mAh Portable Charger for Phones: Charge your iPhone 7 about 8 times, iPhone 7 plus over 5 times, iPhone 6s up to 9 times, a Galaxy S7 up to 5 times, or...
  • Power Efficient Battery: Invest in a high-density Li-polymer portable usb charger that retains 70-80% of its capacity after 500 charge cycles. It s the daily choice...
  • New & Improved iSmart 2.0: The new and improved iSmart 2.0 adjusts current and voltage to minimize charging time. Whereas, Panasonic Smart IC frequency technology...
  • Excellent Quality In & Out: On the outside, a UL94 V-0 fire-resistant shell used by Mercedes-Benz, BMW, and others for their luxury cars. On the inside, the...
XTPower XTPower MP-10000 External Battery Pack with 10000mAh using dual USB 5V and DC 9V / 12V 2A output for many devices. Wall and Car Charger included.
Wireless (XTPower)
  • Attractive, stylish and robust design - 2 USB high power outputs and a DC 9V/12V output
  • High quality Lithium Polymer battery ensures reliable charging
  • 4 LEDs indicate the charging status / capacity
  • Automatic shutdown after 30 sec once the target device is charged or no device is connected
  • 16 supplied connectors provided for more flexibility
One Year Warranty Blueye Profectional Everyday Vehichle Jump Starter 600A Peak 20000mAh,Car Jump Starter Kit(4.5L/3.0L) Battery Booster Power Bank With LCD Display Voltage Built-in Smart Protection
Car Audio or Theater (Blueye)
  • PERFECT FOR EVERYDAY VEHICLES: Our jump starter is able to start all 12V 4.5L GASOLINE vehicles and 3.0L DIESEL vehicles 12 times at a single charge. This may not...
  • BUILT- IN 2mAh POWER BANK: With 15V/16V/19V DC output, it features a key switch to choose different voltages, LED indicator showing the status, Multifunction adapters...
  • SAFETY IS A PRIORITY: Our product has passed international battery safety certification UN38.3. The intelligent clamps have overload protection, over-voltage protection...
  • WELL CONSIDERED MULTIFUCTIONS: Compact Jump Starter + Portable Charger + LED Flashlight + S.O.S Lighting Signal for help + Build-in Seat belt cutting +Build-in window...
  • BEST AFTER SALE SERVICE: We offer 12-month warranty & 30-days money back and 24/7 friendly customer service, welcome to contact us at any time.

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