Rick's Free Auto Repair Advice

Posts Tagged: battery maintainer

Trickle Charger versus battery maintainer or Float Charger

What’s the difference between a Trickle Charger, battery maintainer and Float Charger? DIYers are often confused over the terms Trickle Charger versus battery maintainer or Float Charger. Generally, they understand that the purpose of these chargers is to maintain a charge on their car or marine battery when it’s not being used and recharged by the car, truck or boat charging system. But there is a difference between the three charger types. What is a trickle battery charger? Trickle battery chargers work by providing a very small (sometimes less than … Read More

Battery maintainer

What is a battery maintainer? Many DiYers confuse the function of a battery maintainer with a trickle charger. A trickle charger provides a constant low charge rate to a battery, but it’s not smart enough to shut off when the battery is fully charged. So it continues charging a fully charged battery, causing permanent damage. A battery maintainer, on the other hand, checks battery charge and shuts off when the battery is fully charged. As the battery discharges, it kicks in again to keep it fully charged. A maintainer won’t … Read More


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