| 1 II 0 battery fitness centre Tomezzoli This circuit is designed primarily for maintaining lead-acid batteries that are often not used for l...
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| capacitor itself is charged to about 12 V. Diode D3 is then reverse biased, but D4conducts, so that C4 is charged to just over 20 V, which i...
| I p battery charging indicator 41.141 Sealed 6 V or 12 V lead-acid batteries, under normal charging conditions, are charged at a constant vo...
| Although in electronics more NiCd than PbH2SO4batteries are used (or so we"re told), there is still a healthy demand for good chargers for t...
| While here on earth we discuss, seemingly ad infinitum, the pros and cons of alternative energy sources, there is not far from us — a mere...
| One of the draw-backs in model boats (and other models as well) is that most of them need two batteries: one for the receiver and servos, an...
| battery meter elektor october 1984 The advances in electronics and, in particular, the push towards ever greater miniaturisation means that...
| lead-acid battery charger The lead-acid battery has improved so much in recent years that it can often be a good and less expensive substitu...
| Elektor staff are a versatile lot! The present design came into being because one of our designers is a fervent spelaeologist, more popularl...
| The phase-locked loop (PLL) in IC1 is used as a frequency discriminator. The mid-fre- quency of the internal oscillator can be preset by mea...