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Battery chargers
Battery Chargers are very useful, allowing us to put power into rechargeable batteries and thus reuse them repeatedly without having to buy more. Following a few rules will guarantee that you choose a battery charger that will meet your needs and provide top quality service for years to come. A classic battery charger can handle either NiMH or NiCad batteries.
The three types of battery chargers are:
- AC chargers (which plug into a wall socket)
- Solar chargers (which operate in the sun)
- 12-volt chargers(which plug into your car's cigarette lighter)
Features to look for in a charger
- Avoid battery chargers that do not have an "end of charge control" too much output current can ruin a battery in just a few hours. Never leave an unregulated or so called "automatic" charger connected to your battery overnight, unless it shuts off completely.
- One feature worth spending extra money on is a charger control. A simple LED is typically used to indicate when the charge cycle is complete.
- The battery charger size you choose depends on the charging current required to restore the battery to full charge. Battery capacity is expressed in Amp Hours and is a figure of merit used to work out battery life between charges.
- You can connect a number of batteries in a ‘series’ or parallel’ combination when recharging. Remember that the battery charger rate is limited to a maximum charging current depending on the model you select and this in-turn, limits the number of batteries you can recharge at any one time.
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