Typically, laptops can work over a pretty wide range of input voltages. Free US Ground Shipping! Aren't motherboards and processors typically 12V, and optical/solid state/hard drives run off the 5V? There usually isn’t a fee to recycle these … My stock battery was a 6-cell 4000mah 11.1v and the new battery is an 8-cell 4800mah 14.8v . OK. After some digging, a typical mobile PC (from 2006) can handle 18V to 7.5V at the input either from an AC Adapter or a Battery. Based on my electrical engineering knowledge, I believe most of the electronic circuitry work on pretty lower voltage than 11.1 V or 14.8 V both. All batteries are 100% BRAND NEW-not refurbished. I work with electronics and have a 12 volt to 19.5 volt dc converter. 14.8V doesn't sound too high to me. For example, if your old charger provides 19.5V, then you can use a charger that provides 20.5V or 18.5V. Then again I'm referring to desktops. Laptop battery packs are composed of several battery cells that are wired together in series. Answer is, unlike power adapter, the battery output voltage constantly decreases as it loses its charge since V = Q/C, Q is charge and C is a constant capacitance. The device will only draw the amperage it needs, and as long as your supply at least meets those needs, you'll be alright. This rating is commonly found on your monitor, laptop or other devices that pulls energy from a battery source. Many of our batteries have higher mAh ratings than original brand batteries. https://superuser.com/questions/33207/laptop-battery-is-voltage-really-important-to-respect/33210#33210, Nice, thanks for your answer and nice link ;) I'm now more secure to put it in when I'll receive it ;), https://superuser.com/questions/33207/laptop-battery-is-voltage-really-important-to-respect/406492#406492. Standard USB devices have a 5 V dc voltage and a current up to.5 A or 500 mA for charging only. Milliamp Hours or mAh represents the amount of stored energy in your battery. Here is an article on Notebook Battery Cells that presents an 8-cell battery being 14.4V as pretty common. 99% of our orders leave our warehouse within 48 hours! You can use it to see if the batteries life has been degraded over time. However, it's safe to use a power supply or battery of equal or higher amperage. Watt Hour or Whr is the amount of power used over a period of time (1 hour). ). Check the recycling facility’s open hours and required fees. The manufacture has the recommended range. If it is a real HP adapter it can handle 100-240 volts AC input and the DC output is safe for the laptop. General Guidelines for Combining Power Sources. This is normal. The way the power capability is measured is in C's.A C is the Amp-hour capacity divided by 1 hour. I'm just wondering if it will add a couple hours of use to my laptop, or damage it. What do the power ratings mAh, Volts, Whr and Watts mean? All you need is a plug adapter not a voltage adapter. SMARTLESS Portable AC Battery 99.9W Output Portable Laptop Charger 27000mAh 60W PD USB C Laptop Travel Portable Power Bank for MacBook iPhone Dell iPad Pro HP Nintendo Switch Samsung (Black) 4.0 out of 5 stars 6 Hence, A fully charged battery can power the laptop for few hours until its voltage drops down to the minimum acceptable level. Going from 6 to 8 cells will increase the voltage proportionally. I would err on the side of caution with a 11.1v to 14.8v increase! When this is connected to the - + plus of the charge lead when plugged in to my laptop is says power connected but not charging. Poking around with a … Power regulation boards go for as little as $20 on eBay as pulls, and they can often be purchased new from Internet based liquidators on reasonable terms. When the voltage drops to 9V, the port will shut off and stop providing power. @JeffF and besides hdhondt's comment, R = V/I, not I/V! Many laptop makers have produced batteries that have differing voltage ratings. That’s the standard for many 13-inch notebooks, so any dependable … 2021 Stack Exchange, Inc. user contributions under cc by-sa. The extra voltage a charger has over a battery is so the charger can simultaneously power the laptop and charge the battery (if they had the same voltage rating the charger would only have enough power to run the laptop). Laptop battery: is voltage really important to respect? Portable Laptop Power Bank with AC Outlet, 116Wh/30000mAh 100W 3 USB Output Travel Laptop Phone External Battery Charger Pack Compatible for MacBook, Acer, Dell, ASUS, HP, Samsung, Lenovo, Notebook 4.5 out of 5 stars 41 Combining 6 and 10 volt panels is probably OK. dont worry both voltage 14.8v 14.4 11.1 and 10.8v battery is compatible with your laptop, we do sell many battery of this model already." But I saw something after buying and I'm wondering whether it's really important or not. The risk that 14.8V won't work on your laptop is extremely small. We carry hundreds of compatible batteries and chargers for your Dell laptop, including the Dell Inspiron, Latitude, Precision, Vostro, XPS and more. 1 Whr is equal to 1 Watt of power used for an hour.Voltage measures the volume of electricity that is delivered to your laptop. Omni 20 uses the same port for both input and output, and you will need to active DC output in the menu first to use this feature. The battery description says it's compatible with my laptop model (AS5100, model BL51), but the voltage difference makes me wonder. Generally speaking the output range of adapters such as yours should be between ~19v to ~11v. By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I can't find any specs from their website to confirm that 14.8V is OK, though. Home | Cells Voltage / Cell Formula Nominal Voltage1 cell 3.6V or 3.7V 1 cell x 3.6 or 3.7V 3.6V or 3.7V2 cells 3.6V or 3.7V 2 cells x 3.6V or 3.7V 7.2V or 7.4V3 cells 3.6V or 3.7V 3 cells x 3.6V or 3.7V 10.8V or 11.1V4 cells 3.6V or 3.7V 4 cells x 3.6V or 3.7V 14.4V or 14.8. https://superuser.com/questions/33207/laptop-battery-is-voltage-really-important-to-respect/33299#33299. Will the laptop only take what it needs? Therefore it really does not matter much if you use 11.1 V or 14.8 V. To me, 4400 mAH with 14.8 V would be almost same as 5200 mAH with 11.1 V in terms of time of powering your laptop as what finally matters is WH (watt-hour). I know that 8-cell and 4800mah is okay, but what about the 14.8v instead of 11.1v? A single lead-acid cell starts to charge at anything over 2.25 volts. The voltage output by your charger or power supply must match what is required by your computer or device as closely as possible. We carry both 11 volt and 14 volt versions of the same battery in case you are unsure.Most laptop chargers are rated at 19 volts. The input impedance of the board, reading 918 Ohms, was the same when the board was installed in the laptop, with the battery. Not all USB ports on your laptop or desktop are the same. @Jeff You cannot calculate the battery's internal resistance by dividing its voltage by its mAh rating. While the voltage of the Hi-Capacity battery may not be identical to the original battery, the voltages must be within a reasonable range. They also said: "SQU-516 and SQU-413 is share the same part number, they are compatible, do you try it ? However, before any of the power gets to the main parts of the motherboard it has two go through the main power rail and the battery charging circuits. R=I/V so your resistance is going from 2.78 to 3.08 which means it will run hotter~10%! But is should still be within tolerance. Re: How to know input and output voltage of my laptop's battery? After some digging, a typical mobile PC (from 2006) can handle 18V to 7.5V at the input either from an AC Adapter or a Battery. When plugged in to your particular laptop, the adapter communicates with the battery's internal control chip to detect appropriate battery charging voltage ~15v and adjusts and closely regulates its output voltage to this same ~15v. Watts are expressed as the voltage multiplied by the current (amperes). So the C of a 2Ah battery is 2A.The amount of current a battery 'likes' to have drawn from it is measured in C.The higher the C the more current you can draw from the battery without exhausting it prematurely. The battery only receives power from the laptop charging system so it is never the problem it is the voltage input to the charging port. There are no compatibility issues if your laptop and laptop battery have different voltage ratings. This minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. Maximum power output: The amount of power a USB-C PD port can put out is measured in Watts, abbreviated to W. The battery packs in this guide can output between 45W and 60W of power… The question is why can not we install a battery of voltage rating of 5 V and why we need a regulator at all? In your case, you’ve got this covered: the old charger supplied 19 volts and your replacement is also 19 volts. Voltages of power sources should be similar. The laptop motherboard has several different voltage circuits which are designed to power various parts of your laptop. For Apple products, when a device is presented with any one of the voltage configurations (500mA, 1A, or 2A) and then presented with a range of Pin 1 voltage levels from 4.5V to … How we can Test Charge and Diagnose a Laptop Battery, Medion Laptop, dead, no power or chargingPatreon : https://www.patreon.com/electronicsrepairschool Am I correct in thinking this? Or will it be getting 14.8v straight in the brain? We carry both 11 volt and 14 volt versions of the same battery in case you are unsure. Now check the battery again for your 11.1V...Goodluck! Many laptop makers have produced batteries that have differing voltage ratings. Review the "Battery Capacity" section. But when you select the correct laptop charger, please have a look at the following useful methods: 1) Output Voltage is within +/- 5% of your old charger's output. o Is the voltage output of the AC adapter the same as the battery? Why 80 Volts? The higher the mAh rating the longer a battery will last. Voltage on the pins is now 12.6V, meaning the charger is trying to do its job but no current is actually making it in. Most of the time, the output voltage will be around 10V ~ 11V (nominal voltage is 11.1V). output voltage for asus laptop charger gradually deacreases: Laptop Tech Support: 1: Dec 21, 2017: Z: Can I Safely Charge My Laptop With A Lower Voltage Cord? The first stage is adapter which is nearly 5 V higher than the battery rating voltage to charge it faster to the full. For instance, a 5.25V 1A power supply may only output to 4.5V when under a 2A load. I'm not looking to be able to charge it as fast, or even faster than I'm using it. I got an Acer Aspire 5100 and I just bought a new battery (after the stock battery just died yesterday). 2) Output Current is the same or higher than that of your old charger. Instructions: 1. Laptop Tech Support: 4: Jul 15, 2017: D: Will I damage my laptop or laptop charger if I plugged it into a low voltage outlet? Think of going from 6 to 8 AA batteries. This is a more lightweight and battery efficient way to charge your laptop. You might come across some digital camera batteries or camcorder batteries that have lower voltage output than their AC adapter. Now the second stage is the motherboard or processor which typically runs at 5 V and for that you have voltage regulator inside. Also, the typical voltage for a battery is 11.1V or 14.8V depending upon the numbers of cells. How To Check Power Output Of A USB Port On Windows 10. These higher mAh batteries are still 100% compatible with your laptop. A panel voltage that is lower than the battery voltage isn’t going to charge the battery. Power, the ability to work, is expressed in watts. Laptop: TOSHIBA Chromebook CB30-C/CB35-C. Charger: 100-240V~1.2A (input) ---> 19V=2.37A (output) … There are no compatibility issues if your laptop and laptop battery have different voltage ratings. i.e. If it's sold as compatible with your laptop, it probably is. It needs something to happen using the centre pin to charge. There are no compatibility issues if your laptop and laptop battery have different voltage ratings. When you limit the voltage in the power formula (watts = volts x amperes), as in the case of a 36 or 48 volt electric forklift truck, you can only increase the power available by increasing the ampere draw of the motor. it should work for your computer, thanks" It just means the higher capacity battery will last longer than the original.Watts measures the amount of energy a device uses. It’s important to get the right voltage. This section, which is near the bottom, shows the capacity of the battery over a long period of time. Most laptop chargers are rated at 19 volts. My Account Extend your Dell laptop run time and improve performance with a replacement Dell laptop battery from Laptop Battery Express. The risk that 14.8V won't work on your laptop is extremely small. When you find 2 pins that are connected, go to the battery and short those pins on the battery. We carry both 11 volt and 14 volt versions of the same battery in case you are unsure. 71 Wh, 4800 mAh (8-cell) Li-ion battery pack, 44.4 Wh, 4000 mAh (6-cell) Li-ion battery, 29.6 Wh, 2000 mAH (4-cell) Li-ion battery. First make sure you know the correct output voltage to use (WARNING: choose the wrong voltage can harm your device! Many battery voltages sag under load, depending on the quality of cells, chemistry, etc. >> Not always. 19.5V in from the DC jack; 11.4 V from the battery. I know that my wall plug claims to output 19v, so logically I'm thinking a higher voltage battery shouldn't be a problem. but there is the centre pin which checks the battery or charger? Go to the laptop you got the battery from and check the pins that connect to the battery on it with a multimeter in continuity checker mode. Many laptop makers have produced batteries that have differing voltage ratings. We only selected battery packs with a power output of at least 60 watts. I've found that power circuitry typically has a little bit of tolerance in the voltage, but it's certainly best to use the recommended voltage. This is what allows them to play nice with the … Unplug your laptop and let it discharge: Now that your laptop is cooled down and the battery is fully … Output III can output 3 different voltages: 16V, 19V, 24V. Also, the typical voltage for a battery is 11.1V or 14.8V depending upon the numbers of cells. With the laptop powered by a bench power supply, we can see a notable surrent spike when battery is inserted, so something does happen. Your battery pack will then be engineered to match the voltage of the power AC adapter. This port can be used to power portable DVD players and digital photo frames. Instead of ohms your calculation gives ohms per hour, so the numbers you give are meaningless. Combining 6 and 14 volts is a poor match; Panel voltages should be higher than the charging/load/battery voltage. Since a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. Often the power output of the AC adapter is higher than that of the battery.