Archive for category: Battery and Charger Diagram

Make A Virtual Phone Battery

Battery and Charger Diagram | By: Diagram mania

Virtual cell phone battery is a replacement cell phone batteries for those of you who use the phone as a modem. Including myself, who use the phone as a modem HAIER d1200p internet.  Why must use this virtual battery. For those who surf hobby “full time” with a phone modem, would know the problem, the […]

12 Volt Nicad Battery charger

Battery and Charger Diagram | By: Diagram mania

Battery Charger This circuit can be charged the 12 nicad battery , and the circut charger at 75mA until  until the battery is fully , when the battery is fully the voltage to be down . This charge can charged fully in a hour , because the charge can’t quickly charged , But the charge […]

Nicad Battery charger include voltage limiting

Battery and Charger Diagram | By: Diagram mania

Battery Charger> In this my circuit , which is one of a series of simple battery charger , but this circuit to charger the Nicad battery . This circuit included with current and voltage limting . Why use it ?? because with current voltage you can choose voltage to charge a battery , and the […]

Nicad Battery charger , easy to make.

Battery and Charger Diagram | By: Diagram mania

Nicad battery charger , this circuit just use transformer not  CT and  3 LEDs lamp. And its very very simple circuit charger . This circuit constant current LEDs to adjust charging current. It uses LEDs that pass a constant  current about 15 mA for an applied voltage range of 2 to 18 Volt. They can […]

12V battery indicator level

Battery and Charger Diagram | By: Diagram mania

The following sequence is useful to show the battery voltage (battery) 12 volts. Voltage level is shown with four lights led. To facilitate the reading of the led is arranged in a vertical array. Led top three chosen by the green LED while the lowest is selected the color red. If the battery voltage continues […]

LM3914 battery level indicator

Battery and Charger Diagram | By: Diagram mania

Battery level indicator circuit is a circuit that is used to measure the battery voltage / battery. The main components of the battery level indicator circuit is an LM3914 IC. LM 3914 on Circuit battery level indicator is a monolithic IC that detects an analog voltage. And drive the 10 LEDs that produce a linear analog […]

Battery Level Monitor Circuit

Battery and Charger Diagram | By: Diagram mania

Battery Level Monitor Circuit This simple circuit can monitor the charging process in 12 Volt Lead Acid battery or Tubular battery. The status of LED indicates whether the battery is accepting charge or not. It also indicates the full charge condition. Battery Level Monitor Circuit Diagram The circuit can be incorporated in any battery charger […]

Low battery detector circuit

Battery and Charger Diagram | By: Diagram mania

You feel confused to detect wether a battery is low or high, or you want to be notified if the battery and has expired , this circuit can detect if a battery has begun to decrease its strength. Circuit is based on LM4250 IC is able to detect if the battery runs out and will […]

Phone Battery Charger circuit

Battery and Charger Diagram | By: Diagram mania

The circuit above is a simple circuit to charge phone battery . Charge battery uses an output transformer secondary voltage fast-flowing with 9 Volt 350 mA. First voltage 220/110/120/240 VAC 50/60 Hz , will be reduced to 9 volts, then rectified by 4 diodes 1N4007 and then flowed to light Led voltage power resistor 1 […]

USB to phone battery charger circuit

Battery and Charger Diagram | By: Diagram mania

Without any  USB to phone battery charger circuit we can charging phone battery using port on USB computer , but it will quickly damage the phone battery, and the battery will bulge. Because the voltage which was issued on usb is 5 volts , while the average-voltage phone battery 3.5 – 3.7 volts. That’s why […]