Boost Charger. Utility Gadget .8


Here is a Boost charger to start vehicle if the battery is down. Just connect the charger to the battery terminals (in the connected position) and start the vehicle. It will immediately charge the battery and the vehicle will start. Once the vehicle is started, the current from Dynamo will charge further. You can then disconnect the charger. It is an ideal charger to keep in the vehicle to avoid confusion due to vehicle breakdown related to battery problems. It delivers 15 volt DC and 10 Amps current for the boost charging. Partially discharged battery takes very long time from 24 to 48 hours to attain full charge. A boost charging will speed up the charging process and trigger the chemical reaction within the battery. So if the inverter or car battery is not accepting charge, it is ideal to boost charge for 1 hour and then charging with low current as usual.

A very good Tip to start a breakdown vehicle due to battery failure is added. See how it works.

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High Current Charger with Cut Off. Utility Gadgets.7


Many of my readers require a High current battery charger with battery protection facility. So I am posting this circuit for charging 12 volt Lead Acid battery using Mains power. The same circuit can be connected to Solar panel also. The circuit has features like
1. High current charging
2. Voltage regulation
3. Current regulation
4. Full charge cut off
5. Battery protection
6. LED status indicators

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High Current Battery Charger. Design Trick 10


Lead Acid and Tubular battery sometimes require boost charging with high current to remove the memory effect. In Inverter battery, the charger delivers low current since the charger is always on to charge the battery. If the line voltage is low, the charging will not be complete and battery gets only partial charge. This leads to memory effect and the battery remembers this partial charge as full charge in the subsequent charging. The best method to remove the memory effect is boost charging with high current for a short period. It is better to boost charge the inverter battery once in a month using an external charger after removing the battery connection from the inverter. This charger will do a quick charging and is ideal for Automobile battery and Inverter battery.
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