Chinese Professional 48V Electric Cleaning Vehicle with Drum Brake (CT-023) for Canberra Manufacturer
Chinese Professional 48V Electric Cleaning Vehicle with Drum Brake (CT-023) for Canberra Manufacturer Detail:
|Motor||brushless hub motor 500W/800w|
|Battery||48V20AH sealed lead-acid battery All battery with electric protection circuit|
|Controller||500W Brushless controller|
|Charge||110V -240V 50/60HZ|
|Charging time||8 hours|
|Performance & Main components|
|Max.speed||25km/h (EU) or 32km/h(USA&Canada)|
|Range||60km(distance by riders weight,terrain,road sufurface etc.)|
|Product colour||customer’s request|
|Front brake||drum brake|
|Front fork||hydraulic pressure|
|Rear brake||drum brake|
|Climbing angle||<= 18°|
|Throttle||Twist intelligent speed control|
|With 3 different kinds of max speed (1speed:9km/h,2speed:15km/h,3speed:25km/h)|
|With reverse gear|
|Unit packaging||Each in a carton Box|
|Qty / Export carton||1 pc /ctn|
|Export carton dimension||2.61*1.13*1.1m|
|1×20′footer FCL quantity||pcs|
|1×40′footer FCL quantity||pcs|
The price above are based on FOB Ningbo(Zhejiang Province,China).
The quotation is valid within 15 days, we reserve the right to modify the prices if needed.
The prices above are for your reference only, it is subject to our final confirmation.
Product detail pictures:
Chinese Professional 48V Electric Cleaning Vehicle with Drum Brake (CT-023) for Canberra Manufacturer, The product will supply to all over the world, such as: , , ,
Taking a look inside the HF-94519 Solar Fan Controller and fixing some issues.
This was a kit HF sold back in the early to mid-2000s and it consisted of a pair of 15W amorphous solar panels on a steel frame, a ~7″, 12V fan rated at 251CFM air flow and a small solar charge controller / fan controller. Optionally, you could add a lead acid battery onto the unit to allow the cooling fan to run if the panel output dropped too low.
Some good information on the 4069 CMOS hex inverter:
I suspect they are using the “gated oscillator” circuit to turn the “PWM” function on and off, likely via the small switching transistor. I didn’t want to try and remove the PCB as that would require de-soldering lots of wires.
I think the supplied fan drew more current than the panels and PWM charge controller could put out and thus they had to limit the speed and current of the fan output. If they didn’t do this, the fan would discharge the battery even if the panels were in full sun!
The 75N06 N-channel MOSFET was used to limit current to the fan by providing about a 4.5V drop. This dropped the current requirements of the fan enough that let the panels and charge controller keep current flowing into the battery.
This, however, created a new issue. The ~5W of heat from the MOSFET that sat just below the thermostat switch was enough to keep the thermostat turned on even if the outside temperature had fallen below the set point.
I modified the controller by bypassing the MOSFET circuit and ran the battery negative to the fan negative via the 3A fuse and the thermostat. This effectively eliminates that part of the circuit and with the ~250mA fan I plan to use, there’s no problem for the charge controller to run the fan and charge the battery at the same time.
I used to use this controller to partially heat my house some years ago:
A couple of threads on this cooling fan kit:
Next video will look at testing the PC case fan and controller in the solar garden shed:
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And as always, thanks for watching
Louisiana Fairytale by Austin Rogers
aki esta mi cajon de sonido de 500watts para la cg 125cc DXR las bosinas son de
la misma marca que el ampli, pero el detalle es que las bosinas
son de 420watts y el ampli de 500, por lo que se distorsiona la
musica un poco al subirle a todo. el ampli se alimenta a 12v se
los conecto a la moto.
salio barato ya que el cajon ya lo tenia pero le quite la bosina
las bosinas salieron con todo y cabe, tornillos, mica y etc. $210
el ampli DXR AMP-220 500watts : $250
Ahora le inserte dos twiter en la parte del medio de las bosinas y se escucha mas claro.
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