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February 8, 2023

Charge controllers for NiMH, NiCad 8 cell, 9 cell or 10 cell packs

DC-DC solar charge controllers
This is a microprocessor controlled DC/DC converter which can be used as a DC input charger for Nickel-Cadmium, and Nickel metal hydride batteries. It also has serial communications and is programmable with great flexibility.

Can be used as a solar charge controller for a a range of cell counts and battery capacity.
Can use locally to the battery to boost voltage after a long wire run.
Output voltage can be higher or lower than the input voltage.
State-of-the-art charging algorithms for nickel metal hydride and nickel cadmium batteries.
Also useful in other energy harvesting applications since it can be programmed to use whatever power is available, unlike other battery charging circuits.

Quantity 1-49 pieces 50-99 100-199 200+
PST-SEP10-NiMH $80.00
$75.00 $63.30 $61.00
Input voltage 8-30 volts, 16V nominal
Battery pack size: 8 cells, 9 cells, 10 cells, self adjusting
Output Current 2 amps nominal
Termination method -deltaV
Dead-pack charging Trickle charge always available to "jump start" dead packs
Form Circuit board product, (frame or case developed on request)
Dimensions 4" x 1.8" x 0.5" (10 cm x 4.6 cm x 2 cm)
Mounting Diagram Dimensioned mounting diagram
Weight 1.2 oz, 34 grams
Connector Pin out  
J1 Input Positive spade terminal 0.25 inch Faston
J2 Input Negative spade terminal 0.25 inch Faston
J3 Pin1 Negative out to battery
Pin2 Positive out to battery
Pin3 N/C
Pin4 negative to green LED (needs a 1K resistor)
Pin5 negative to yellow LED (needs a 1K resistor in series)
Pin6 negative to red LED(needs a 1K resistor in series)
Pin7 +5V for LED return
Mating connector example:
1 piece Molex 22-01-2075 housing 7 Pieces Molex 08-50-0114 crimp terminal
J4 Pin1 RX
Pin2 TX
For optional communication
J5 Pin 1 MCLR
Pin 2 VDD
Pin 3 NEG
Pin 4 DAT 5 CLK
For optional programming

click here for firmware flow diagram
Click on the diagram for a readable flow chart

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