More about charger (152)

1-07-2008 | This simple circuit can be used to charge batteries from a solar cell array. The circuit consists of an oscillator, a DC-DC step-up or ‘boos...

1-07-2008 | This project doesn’t use a microcontroller, nor even the slightest specialized integrated circuit (IC). In spite of this, it will look after...

1-07-2008 | The majority of dirt cheap ordinary chargers don’t include any regulation circuitry and so will over-charge a vehicle battery if you’re unwi...

1-07-2007 | At the time of writing, the latest AA NiMH (Nickel metal Hydride) batteries have a capacity of up to 2900 mAh. Using an original-type conven...

1-07-2007 | Batteries based on lithium, such as LiPo (Lithium-polymer) and Lithium-Ion ones are ideal candidates to supply a robot with power. Compared...

1-07-2007 | Unless your robot is frugal enough to make do with primary cells without breaking the bank, or is environmentally-friendly and runs off sola...

1-04-2007 | Originally developed for receiver batteries in radio-controlled (RC) models, the circuit discussed in this article is used to charge, discha...

1-04-2007 | In theory you could just connect a solar panel via a Schottky diode to several batteries connected in series. The internal resistance of a s...

1-09-2006 | The circuit allows NiCd type LR03 (AAA) and LR6 (AA) rechargeable cells to be discharged in a controlled manner. The discharging (load) curr...

1-03-2006 | Recharging batteries for devices such as digital cameras can be a problem when you’re on holiday in a remote or inhospitable region. You won...