Vf is the term used for the LEDs forward voltage. It is the voltage required to activate the LED and produce the output specified, assuming that it is drawing the recommended current.
What is VF battery?
Vf is the filament voltage of a vacuum tube. Some tubes, especially those intended for battery operation, had a single wire that was both the cathode and the heater. This was often called the filament.
What is 128VF?
Description. #128VF Motor Type: Brush Type Input: 100V-240V 50/60Hz 5.5A Output: 18-118V 4A Battery Capacity: 128V 12800 mAh Charging Time: About 45 Minutes Working Time: About 4 Hours Plug: US plug (sent with an adapter according to your country) Max.
What does 48VF mean?
Posted September 19, 2021. 48VF relates to the battery capacity and connection arrangement much the same way as dry cell s are marked ‘AA’ or ‘AAA’ etc. All cordless hand tool batteries that I am aware of are 21v but there are many different capacities to fit them, for example 48VF, 88VF, 98VF and 268VF.
Are all lithium ion batteries 3.7 V?
For example, almost all lithium polymer batteries are 3.7V or 4.2V batteries. What this means is that the maximum voltage of the cell is 4.2v and that the “nominal” (average) voltage is 3.7V.
What is the difference between 2.0 Ah and 5.0 Ah?
You see, the 5.0Ah pack actually has more than double the amp hours of the 2.0Ah battery. That’s because they’re using different cells. They’re both 18650 sizes, but with different energy densities. So in addition to having double the cells, the 5.0Ah battery also has a higher energy density in each one.
How long will a 2Ah battery last?
about 6-8 hours
A compact 2ah battery should last about 6-8 hours, so you get about 3-4 hours per ah.
How many volts is 98vf?
240 Volts
Technical Details
| Manufacturer | Hyuduo |
|---|---|
| Voltage | 240 Volts |
| Installation Method | InstallationMethod |
| Item Package Quantity | 1 |
| Spout Height | 1 Centimeters |
What is 168VF battery?
– 168VF max impact wrench driver, driven by a highly specific motor power, power supply via a rechargeable battery. Consisting of a durable aluminium head, good sealing effect and a rotating shaft made of tungsten steel. -The 168VF impact wrench has an enormous torque of 520 Nm at speeds of up to 4200rpm.
What is the difference between cordless drill batteries?
NiMH batteries are a little lighter than NiCd batteries. They have a higher energy density, meaning that their capacity is greater than NiCd batteries, running 2 to 3 times longer in a single charge.
How long does a 4.0 Ah battery last?
E.g. Under ideal conditions, a cordless lawn mower that continuously draws 2.0 amperes (amps) of current will drain the total charge of a 2.0Ah battery in 1 hour. So by that logic, a 4.0Ah battery should last for 2 hours in the same electric mower.
How long will a 4 amp hour battery last?
So, for example, batteries with a 4-Ampere hour rating will last for 4 hours when it uses 1 Ampere of current. But it would then only last for 2 hours if it were to take 2 Amperes of current.
What does 2.0 Ah mean on a battery?
The number alongside the letters will tell you the total amount of current the battery will consistently deliver to your tool over the course of an hour. For example, a 2.0ah battery draws 2 amps of power and you will need to recharge it after 60 minutes of continuous use (under ideal circumstances).
Can I use a 5v charger with a 3.7 V battery?
The battery is charged by this method and the battery status needs to be monitored at all times. Lithium battery with protection circuit board can be charged with 5V voltage(4.8V to 5.2V can be used). For 3.7V lithium batteries, the charge cut-off voltage is 4.2V and the discharge cut-off voltage is 3.0V.
Can you charge a 3.7 V battery with a 4.2 V charger?
You must never charge any 3.7V lithium ion battery using a fixed voltage 4.2V charger. Although this voltage is appropriate for the last part of the charge, if applied when the existing charge percentage is low then it is very likely to create excess current.
How low can a lithium battery go?
Conversely, Lithium batteries can be safely discharged to a 100% Depth Of Discharge (DOD) (@10.5v), which provides more useable amps vs. a maximum 50% DOD for an AGM to maintain its cycle life.
What does 5Ah mean on a battery?
Ah, Ampere Hour or Amp Hour all describe the same characteristic of a battery – how long it will last when connected to the item it is powering. This is often referred to as the ‘capacity’ of a battery. The measurement is often misunderstood as, for example, “a 5Ah battery will power a 5 amp device for one hour”.
Can I use 2Ah instead of 5Ah?
So in theory, a 2Ah battery should, at least initially, supply the same amount of max of power to the tool, but do so for a much shorter time than the 5Ah. But I’ve also hear, at least anecdotally, that a 5Ah battery will provide noticeable and significant max power increases over the 2Ah in the same tool.
Can I use a 5Ah battery instead of 2Ah?
Yes, it can be used and how the exchange would look like. If you are using a 4Ah battery and heading towards the 5Ah would mean that your application could run up to 25% longer. In contrast, if you want to change from 5Ah to 4Ah, this means your electric device will run up to 20-23%.
Can you charge a 4ah battery on an 2Ah charger?
You can charge the 2Ah pack on the 4A charger, let it rest, then measure its open circuit voltage. Use it a little, then charge it on the 2Ah charger and see if there is a difference. Another thing you can try is to monitor the voltage of the battery as it is being charged.
Can I use a 4ah battery instead of 2Ah greenworks?
Can I use a 4ah battery instead of 2ah? Yes, this is perfectly fine. So long as the battery has the same voltage rating, and is designed to fit, then it will increase the tool’s working time.
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