1st Buffer-Pack 25F V4.81 for Helis 450-700 # 1st9540.01

1st BUFFER V4.81 3x25F, 0.5 mm² JR cable, for helicopters 450-700

The new version of 1St Buffer has been upgraded.
You can use the buffer as usual, but switching off the buffer is now even more convenient.
In addition to the button on the buffer itself, the buffer can now also be switched off via a channel in the receiver with an assigned switch.
This is a great advantage, especially for models in which the buffer is installed inaccessible.
To do this, the buffer is connected to a free slot and a switch is assigned for this channel, which toggles it from -100 to +100.
The buffer uses its LEDs to indicate whether it is in the process of being switched off.
If it is in operation and supports the system, the red LED flashes as usual.
When charging, the green flashes.
When it is full, all LEDs light up.
After the switch is pressed, the buffer flashes red and green alternately for a short time and then switches off.
Don't worry if you use it incorrectly.
If you accidentally launched the model in the buffer from position, there is no risk.
The buffer must first be switched to the on position and then to the off position before it turns off. This minimizes the risk of switching off the buffer unintentionally. Likewise, some time passes before switching off, so that in the event of an accident, the switch can be quickly switched back to Pos on.

Overview:
32 bit, 48MHz MCU control of the buffer unit
Adaptive charging
current sensor
External alarm output *
With RC switch-off

Application:
Backup battery for electric helicopters for safe emergency landing
Current peak buffers for remote-controlled models (airplane, helicopters, etc.)
Effective buffering of servo return currents
Fully automatic setup **

Maximum ratings:
Maximum voltage (INPUT) 10V
Maximum buffer voltage (OUTPUT fully charged) 8.5V
Short-term peak current 25 amps

Technical specifications:
Width: 17 mm
Length: 49 mm
Height 29 mm
Weight: approx. 27 g
CAPs: 3 x 25 F
Cable length: 18 cm
Plug: Graupner / JR UNI
Input voltage: 5.6 V to 10 V

* optionally available in a later software version
** The switch-off voltage is currently NOT adjusted automatically and is preset to 3.4 volts

Attributes
Module	BEC Backup
Part number	1st9540.01
will fit in	SG520 | SG521 | SG522 |