What does a DC power supply actually do?
It plugs into the AC power in your home and converts the higher voltage down to 12volt DC high amperage output power for your RC battery charger, or whatever else requires a low voltage DC input to work. If you already have an AC/DC charger you will not need a power supply as these chargers have there own built in power supply to feed the 12volt requirement of the charger, but these chargers are usually not intended for fast high amperage charging applications.
Why are some chargers only DC?
This feature allows the manufacturer to dedicate all the room inside the charger to do the job at hand, and still keep the charger compact. Typically, most DC only units will charge at a much higher rate than AC/DC chargers.
Why would you need a 24 volt power supply?
Nearly all high-end battery chargers do not plug into a standard household 110 volt AC power outlet, they are designed from the ground up to run off of 12volt DC power source such as a 12v car battery, as with the most high-end chargers they are very capable of operating from 12 to over 32 volts DC and with good reason. Lithium based batteries have come a long way in the last 5 years. In the past, 1 hour charge rates were the norm for these batteries, but as technology has advanced, so has the ability of these batteries to be fast charged. It’s not uncommon to see Lipo batteries designed for a 5C charge rate (roughly 12 minutes), with others rated up to 15C (roughly 4 minutes to charge!).
In the past, if a charger could charge at 8 amps, it was high output, but if you do the math, that wouldn’t even make a dent in fast charging one of today’s packs. For example, if you have a 5000 mah battery, and it’s capable of a 15C charge rate, that’s 75 amps and a lot of people want to charge two of these batteries at ounce.
Times have also changed in cell counts. Voltages are much higher than they used to be. Lets say that you drive an 8th scale electric buggy, and you are running a 4, 5, or 6S Lipo pack. A 4S pack is fully charged at 16.8 volts, 5S at 21 volts, and 6S at 25.2 volts. So lets say you want to charge a 6S 6000 mah pack at just 1C (6 amps), off of a 12 volt DC power supply. Your battery charger then has to “ramp up” the 12 volts from the power supply to over 25 volts to fully charge the 6S pack. The “rampin up” process the charger must do requires pulling a lot of extra current from the power supply to do this feat. And to charge a 6S 6000 mah pack at 6 amps, the charger will pull at least 12 amps from a 12v power supply. What if you were trying to charge the 6S pack at a 5C rate (30 amps)? Then you’d be asking for 60 amps!
A high output assembled power supply from Zale RC Hobbies will range from a high output 12volt system to a whopping 36volt, and from 47 to 103amps. Not all battery chargers will work off of 24 or 36 volts, but most of the new high-end chargers will, such as Hyperion or PowerLab8.
Using a 24 volt DC power supply, in conjunction with a charger capable of running off of 24v, is by far the preferred method of charging high cell counts and/or at high charge rates.
Why? Because running a 24 volt based charging system is much more efficient, requiring typically half the current of those based around 12 volts making the output load much less strenuous for the power supply and Zale RC Hobbies can build one for your personal needs.
References of: RChelicopterfun.com
Zale RC Hobbies We Build Power Supplies For The Discrete Enthusiest
It plugs into the AC power in your home and converts the higher voltage down to 12volt DC high amperage output power for your RC battery charger, or whatever else requires a low voltage DC input to work. If you already have an AC/DC charger you will not need a power supply as these chargers have there own built in power supply to feed the 12volt requirement of the charger, but these chargers are usually not intended for fast high amperage charging applications.
Why are some chargers only DC?
This feature allows the manufacturer to dedicate all the room inside the charger to do the job at hand, and still keep the charger compact. Typically, most DC only units will charge at a much higher rate than AC/DC chargers.
Why would you need a 24 volt power supply?
 |
| 12V-550W-47A 5Outputs |
Nearly all high-end battery chargers do not plug into a standard household 110 volt AC power outlet, they are designed from the ground up to run off of 12volt DC power source such as a 12v car battery, as with the most high-end chargers they are very capable of operating from 12 to over 32 volts DC and with good reason. Lithium based batteries have come a long way in the last 5 years. In the past, 1 hour charge rates were the norm for these batteries, but as technology has advanced, so has the ability of these batteries to be fast charged. It’s not uncommon to see Lipo batteries designed for a 5C charge rate (roughly 12 minutes), with others rated up to 15C (roughly 4 minutes to charge!).
In the past, if a charger could charge at 8 amps, it was high output, but if you do the math, that wouldn’t even make a dent in fast charging one of today’s packs. For example, if you have a 5000 mah battery, and it’s capable of a 15C charge rate, that’s 75 amps and a lot of people want to charge two of these batteries at ounce.
Times have also changed in cell counts. Voltages are much higher than they used to be. Lets say that you drive an 8th scale electric buggy, and you are running a 4, 5, or 6S Lipo pack. A 4S pack is fully charged at 16.8 volts, 5S at 21 volts, and 6S at 25.2 volts. So lets say you want to charge a 6S 6000 mah pack at just 1C (6 amps), off of a 12 volt DC power supply. Your battery charger then has to “ramp up” the 12 volts from the power supply to over 25 volts to fully charge the 6S pack. The “rampin up” process the charger must do requires pulling a lot of extra current from the power supply to do this feat. And to charge a 6S 6000 mah pack at 6 amps, the charger will pull at least 12 amps from a 12v power supply. What if you were trying to charge the 6S pack at a 5C rate (30 amps)? Then you’d be asking for 60 amps!
A high output assembled power supply from Zale RC Hobbies will range from a high output 12volt system to a whopping 36volt, and from 47 to 103amps. Not all battery chargers will work off of 24 or 36 volts, but most of the new high-end chargers will, such as Hyperion or PowerLab8.
Using a 24 volt DC power supply, in conjunction with a charger capable of running off of 24v, is by far the preferred method of charging high cell counts and/or at high charge rates.
Why? Because running a 24 volt based charging system is much more efficient, requiring typically half the current of those based around 12 volts making the output load much less strenuous for the power supply and Zale RC Hobbies can build one for your personal needs.
References of: RChelicopterfun.com
Zale RC Hobbies We Build Power Supplies For The Discrete Enthusiest
No comments:
Post a Comment