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Deal · Starting and Battery

Schumacher Electric FR01235 Charger at $110.94

The Schumacher FR01235 charges and maintains 6V or 12V batteries and can jump start large engines. Check the cord and clamp reach before you buy.

Schumacher FR01235 Battery Charger with Engine Starter, Boost, and Maintainer - 100 Amp/30 Amp, 6V/12V - for Tractors, Cars, and Trucks
Schumacher FR01235 Battery Charger with Engine Starter, Boost, and Maintainer - 100 Amp/30 Amp, 6V/12V - for Tractors, Cars, and TrucksAmazon

Price record

Live at Amazon

Price
$110.94
Typical price over 90 days
$134.67
Difference
$23.73 (18%)
Amazon rating
4.3 of 5 (204 reviews)
Checked
Sep 21, 2026, 9:45 AM EDT
Check the price at Amazon (opens Amazon in a new tab)

Disclosure. As an Amazon Associate, TunedDrive earns from qualifying purchases.

Which batteries this charger fits

This charger is built for large batteries in SUVs, trucks, and farm equipment, not just a compact car battery. It detects whether you have a 6V or 12V battery on its own, so you don't have to select a voltage before connecting.

We recommend it for anyone who wants one unit that can boost a weak battery, start a larger engine, and maintain a battery between uses. The 30 Amp boost and 100 Amp start settings give you a big push when a battery is low, while microprocessor control adjusts the charging rate automatically.

The same charger also puts out a quick boost and a higher jump start setting, so it covers both a battery that needs a top-up and one that needs help turning a larger engine over.

Product detailValue to match to your vehicle
ProductSchumacher FR01235 Battery Charger
ModelFR01235
ColorBlack

What the built-in tester can and cannot do

The battery and alternator tester shows charge level and can help you spot electrical problems, but it is not a full diagnostic scan tool. We'd consider it a practical first check when a battery keeps draining or an engine cranks slowly, not a replacement for a technician's fault-code diagnosis.

Reverse hook-up protection keeps the charger from running if you clip the clamps the wrong way, which is one reason to choose it over a basic model. It starts and maintains, it does not read engine fault codes.

Diagnostic boundary

Diagnostic boundary: charge level and alternator testing, not engine fault codes.

The current price and comparison

Amazon price
$110.94
Customer rating
4.3
Customer reviews
204
Typical price over 90 days
$134.67
Difference
$23.73 (18 percent)

At $110.94, you save $23.73 compared with the typical price over the last 90 days of $134.67. That works out to about 18 percent off.

Mounting and power questions to settle first

This is a corded charger, so you need an outlet near where the vehicle sits. The cord wrap makes it easier to carry and store, but confirm the cable reaches from your outlet to the battery terminals before you commit.

Auto-voltage detection removes the guesswork of choosing 6V or 12V, yet the clamps still must reach both battery posts in your truck, SUV, or tractor. Check that access before you buy, especially in tight engine bays.

Who should choose this charger

Choose the Schumacher FR01235 if you keep a truck, SUV, or piece of farm equipment and want one unit that can boost a weak battery, start a larger engine, and maintain a battery between uses.

Skip it if you need a portable jump pack with no cord, or if your routine relies on a charger that reads engine trouble codes. Your last check is the distance from your outlet to the battery and whether the clamps will sit cleanly on the posts.

Specifications

ModelFR01235
ColorBlack