Schematic Diagrams

Useful schematic and wiring diagrams. ✔ ✔ Enjoy electronic circuits, let your idea comes to hardware

nicad battery charger

Simple Ni-Cad Charger for Solar Cell Radio by BD140

A solar cell radio used a 3V (or two 1.2V) Ni-Cad battery in it. The battery can not be removed. It use a mini jack socket for charging. Its quiet difficult to find such a voltage charger. Here is the circuit to convert the voltage from the general power supply.(or Solar cell) It circuit cause […]

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Simple Ni-cad battery charger with little parts

Nicad battery as the battery is good. Commonly used. If you do not have a battery charger. I recommend this circuit. It is suitable for beginners. But still works great. Charging batteries are commonly used in the circuit because it’s cheap. Because we use a simple little device really. The Ni-cad battery charger circuit can […]

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Constant current battery charger circuit

This is a Nicad battery charger circuit that old, but very effective. Because the principle of charging with Constant current And controlled by constant voltage. The high efficiency.Reduce anxiety on rechargeable batteries for a long time.We use a simple IC-7805 is that everyone must know. To control the constant voltage. We maintain constant current circuits […]

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Nicad Battery Zapper

This Nicad Battery zapper circuit clears internal shorts in nickel-cadmium batteries by burning them away. Nicad Battery Zapper Parts list : Resistor  : 220 ohm, 1 K ohm, 8K2 ohm, 3K9 ohm Dioda : 1N4006 SCR : C106Y Capacitor : 100uF/200V CAUTION : The negative nicad battery terminal is linked to one side of the […]

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Thermally Controlled Nicad Charger

One method to charge Nikel Cadmium (NiCad) batteries quickly with out abuse is generally to measure battery cell temperature and taper the charge accordingly. This nicad charger circuit works with a thermocouple for this function. Another thermocouple nulls out the effects of ambient temperature. The temperature difference between both thermocouples can determine the voltage, which […]

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12V Nicad Battery charger 200mA/H

This 12V Nicad Battery charger 200mA/H circuit charges the electric battery at 75 mA until the battery is charged, then it cuts down the current to a trickle rate. It’ll fully recharge a dead nicad battery in 4 hours and the battery can be left in the  Nicad Battery charger for a long time. Setting […]

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Nicad Battery Charger by IC LM317T

Here is circuit Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Because this circuit charges with constant current and voltage regulated. But this circuit is not […]

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Nicad Battery Charger by IC LM317T

Here is circuit Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Because this circuit charges with constant current and voltage regulated. But this circuit is not […]

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Stabised Current Battery Charger by LM723

Normally battery Charger Circuit, will use the way gives Stabised Current or stable current. For this circuit also the integrated circuit LM723 and electronic parts a few with follow the circuit appraise R1 = 11ohm for fix current at 60mA. We can seek the value R get from R = 700/I and The transistor 2N3055 […]

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Check the milli-Ampere-hour capacitance of your rechargeable NiCad batteries

Introduction With this mAh meter you can check the mAh capacitance of your NiCad or NiMH rechargeable batteries Normally the cheaper NiCad AA-type cells have a capacitance of 500-750mAh (NiCAD) the more expensive NiMH AA-cells types are up to 1800mAh. I built this circuit because the capacitance of some of my older NiCad batteries seemed […]

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