Battery Testing Guide
Before you use or charge any lithium battery you must read the. Do not charge or use batteries if the battery. is punctured or damaged.
- Jun 28, 2018 - Battery testing for batteries in vehicles with an automatic start-stop system requires more steps. Battery Testing Guide (PDF Download).
- Dec 27, 2017 - A handy and very useful 29-page battery testing guide is now available free of charge from the Megger website. The guide, which is available.
is bloated, expanded, swelling or otherwise deformed. has any cell with a voltage of 3.3v. This means less than 9.9v for a 3-cell/11.1v battery. Do not charge batteries unattended. Monitor batteries during charging for popping, hissing, smoke, sparks or fire.
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Also monitor the battery for any swelling or other deformities. Disconnect the battery from your charger immediately. Do not charge batteries near flammable material. Charge batteries in a fireproof container.
Do not charge batteries while they are in your robot. LiPo Battery Anatomy Your LiPo Battery will have two connectors on it - a Balance Connector and a T-Connector (sometimes called a 'Dean's Connector').
Connector Type Picture Uses Balance Connector Charging and monitoring your battery T-Connector Charging and discharging your battery Balance Connector LiPo Batteries are comprised of 3.7v cells. A 11.1v battery has three-3.7v cells. The balance connector gives you individual access to each of these cells. This will allow you to individually monitor and charge cells. This is called 'Balance Charging' and will increase the lifespan of your battery. Note:The balance charger is not designed for discharging, so never plug it directly into a robot that you want to power.
T-Connector The T-Connector gives you access to the full voltage across all of the cells of the battery. The T-Connector is primarily used to supply power to your robot. Testing and Monitoring Your Battery We recommend that you use your LiPo battery with a. This device is capable of monitoring each cell in your battery and sounding an alarm when the battery gets too low.
This is essential for the care of your battery - if you let your battery fall to low in voltage, the battery will become permanently damaged and unusable. Note: The Tester/Monitor is not capable of turning your battery off, you must still manually disconnect your battery from your robot. To attach your battery to the Battery Tester/Monitor, first find the ground wire on the balance connector. This wire will be the one farthest away from the red wire. Match the ground wire up to the minus symbol on the back of the Tester/Monitor. The red wire should match up to the 3s pin. Once your battery is connected, the Tester/Monitor will make a noise.
It will then cycle through various measurements. ALL:The voltage across the entire battery.11.1 nominal voltage, this may vary when fully charged or after discharge.
No.1:The voltage across the first cell of the battery. 3.7 nominal voltage, this may vary when fully charged or after discharge. No.2:The voltage across the second cell of the battery. 3.7 nominal voltage, this may vary when fully charged or after discharge.
No.3:The voltage across the third cell of the battery. 3.7 nominal voltage, this may vary when fully charged or after discharge. We recommend that you attach your Battery Tester/Monitor whenever you are running your robot. When you are done running your robot, remove the Battery Tester/Monitor.
Do not store the battery with the Battery Tester/Monitor attached, as the tester will slowly drain the battery You can push the button on the battery monitor to change the voltage that the alarm will sound (or even turn it off). You can change the monitor to values between 2.7 and 3.8V. We recommend the default setting of 3.3v. Connecting a Battery to Your Robot.
LiPo batteries with a T-Connector/ Dean's connector can easily be plugged into an ArbotiX Robocontroller using a. This harness converts the T-connector into a DC barrel jack that plugs directly into the ArboitX Robocontroller. The harness also has a switch to easily shut power off to the ArbotiX Robocontroller. Every Hexapod and Quadruped kit comes with one of these harnesses.
Charging your battery. Connect your Battery's T-Connector to the T-connector-to-Banana-Plug Cable. Plug the red and black banana plugs into the LiPo Charger.
Connect the Balance Connector to the 3 Cell port in the LiPo Charger. Plug your into the Balance Charger using a. Press the Batt. Type button until you see PROGRAM SELECT LiPo Batt Then press the Enter button. Press the Inc. Button until the first line of the screen changes to LiPo Balance Then press the Enter button. The Charge Current will begin to flash.
This setting will depend on your specific battery. For example, the that comes with InterbotiX Crawler kits has a Recommended Charge Current of 2.2A. Be sure that you do not exceed the recommended Charge Current for your particular battery.
Buttons to change the flashing current value. Once you have set the current to the desired value, press 'Enter'. The Charge Voltage will begin to flash. Buttons to change the flashing voltage value.
Battery Testing Guide
Once you have set the voltage to 11.1 (to match your battery), press 'Enter'. Now all numbers should stop flashing. Press and hold the Start button. The screen will flash a message BATTERY CHECK WAIT. Then the screen will change to R: 3SER S: 3SER CONFIRM(ENTER) Press the Start button one more time to begin charging your battery. Your battery will take 1-2 hours to charge.When the battery is charged your charger will begin to make a noise. Disconnect the battery and unplug the charger from power.
Note: Do not leave your charger unattended while it charges a battery. Monitor the battery for extreme changes in temperature or shape. If the battery begins to smoke or make an 'popping' noise, disconnect the battery immediately. You can also charge your battery using the 'LiPo Charge' mode. For this mode you will only need to connect the T-Connector, and the charging will complete faster than with Balance Charge mode. However this mode will not monitor the individual batter cells and may reduce the lifespan of your battery.
Trouble Shooting. My charger says 'Connection Break' First check that your balance connector and T-Connector are fully connected to the charger. If everything is connected properly, your battery has a bad connection or has dropped below a safe voltage. Your battery is unusable and you should dispose of it. My battery is 'puffy' or otherwise deformedImproper charging, storage, or damage may cause LiPo batteries to puff out.
Your battery is unusable and you should dispose of it very carefully. Do not attempt to charge or use the battery. Storing your battery Store your battery in a cool place in a firesafe container.
With refinements over the decades, it has become a critically important back-up power source. The refinements include improved alloys, grid designs, jar and cover materials and improved jar-to-cover and post seals.
Arguably, the most revolutionary development was the valve-regulated development. Many similar improvements in nickel-cadmium chemistry have been developed over the years. 2003 bmw 325i owners manual.
Figure 1 – Battery construction diagram Battery construction and nomenclature A battery must have several components to work properly:. a jar to hold everything and a cover,. electrolyte (sulphuric acid or potassium hydroxide solution),. negative and positive plates,. top connections welding all like-polarity plates together and then. posts that are also connected to the top connections of the like-polarity plates.
All batteries have one more negative plate than positive plate. That is because the positive plate is the working plate and if there isn’t a negative plate on the outside of the last positive plate, the whole outer side of last positive plate will not have anything with which to react and create electricity.
Hence, there is always an odd number of plates in a battery, e.g., a 100A33 battery is comprised of 33 plates with 16 positive plates and 17 negative plates. In this example, each positive plate is rated at 100 Ah. Multiply 16 by 100 and the capacity at the 8-hour rate is found, namely, 1600 Ah. Europe uses a little different calculation than the US standards. In batteries that have higher capacities, there are frequently four or six posts. This is to avoid overheating of the current-carrying components of the battery during high current draws or lengthy discharges. A lead-acid battery is a series of plates connected to top lead connected to posts.
Free Car Battery Testing
If the top lead, posts and intercell connectors are not suffciently large enough to safely carry the electrons, then overheating may occur (i 2R heating) and damage the battery or in the worst cases, damage installed electronics due to smoke or re. To prevent plates from touching each other and shorting the battery, there is a separator between each of the plates. Figure 1 is a diagram of a four-post battery from the top looking through the cover. It does not show the separators.