71050 Handle
Power Supply Module
2 Batteries
Study Google Spreadheet
Video on how long the light will stay on.
Duty Cycle 30 seconds to two minutes.
Bulbs Draw .75 A
1.48v total charge
1.38v <10%?
Nov 5, 2019 · Charging
NiCd batteries​​ Unlike a lead-acid battery which can take large
variations in
amperage and voltage while charging, the NiCad batteries
require steady amperage and only very
slight variations in voltage. The
charge rate for a NiCad is right between 1.2 V and 1.45 V per cell.
The cheapest way to charge a nickel cadmium battery
is to charge at
C/10 (10% of the rated capacity per hour) for 16 hours..
So a
100 mAH battery would be charged at 10 mA for 16 hours.
This method does not
require an end-of-charge sensor and ensures a full charge.
Cells can be charged
at this rate no matter what the initial state of charge is.
The minimum voltage
you need to get a full charge varies with temperature--at least 1.41 volts per
cell at 20 degrees C.
The best charging practice is to use a timer to prevent
overcharging to continue past 16 hours.
An example of this kind of charger is
shown at Ni-6-200.htm .
This charger uses a
microprocessor to report the state of charge via an LED as well as performing
the timing function.
Battery Charging
72200 Battery Better Delivery
Better Warranty
Welch Allyn Bulb Replacements
11600 Opthalmascope Head Bulb
Link Bulb numbers... WA03000 03000 3000 $5.85 Dynamic Lamps
Bulb Connection
Fast and free $8.99
Welch Allyn WA-03000 Replacement Bulb Lamp 03000, 3000, WA03000,WA-03000-U
Welch Allyn WA-03100 Compatible Bulb Lamp 03100, 3100, WA03100,WA-03100-U | eBay
25000
Otoscope Bulb $4 shipping 03100 $5.85 dynamic lamps.
$4.94
Welch Allyn WA-03100 Compatible Bulb Lamp 03100, 3100, WA03100,WA-03100-U | eBay
Battery Specifications
72200 Battery has side output
72300 is for units that switch over to C batteries.
Amazon
Google Search
Best deal.
72200 battery $9.80
3.6V Battery for Welch Allyn 71020 71050 71670 72200 72207 74054 Handle Otoscope | eBay
$25.79
