Would this work for a 12v 50 ah battery on ryobi mower? description says "100a load test for 12v batteries; 50a load test for 6v batteries"

The short answer is probably not. The system uses advanced algorithms to test batteries and is designed for specific battery loads which measures internal characteristics of the battery and infers the battery's CCA output and health based on a certain range of battery. Outside that range and the electronic battery tester will be ineffective. Your best bet is to purchase a carbon pile or cheaper resistance type ($25) battery tester for such a small battery. Hope this helps.

Can it be used on agm batteries?

Yes it can use on agm batteries.

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Battery Load Tester 100 Amp 6/12V with Metal Switch

Battery Load Tester 100 Amp 6/12V with Metal Switch

Product ID: 166070547

Details

Brand
Q-Tech
Color
black
Item Weight
2 pounds
Power Source
Battery
Style
Analog

📊Color-coded analog voltage meter

🔋100A load test for 12V batteries

⚙️Heavy duty steel case & metal switch

9481 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Power up your diagnostics with confidence—never get caught powerless again!

BUILT TO LAST - Rugged steel case with enamel finish and metal switch ensures durability under heavy use.
SAFE SECURE GRIP - Vinyl dipped clamps with copper-plated jaws deliver reliable, corrosion-resistant connections.
USER FRIENDLY READINGS - Color-coded analog meter makes voltage levels instantly clear—no guesswork needed.
VERSATILE COMPATIBILITY - Perfect for cars, trucks, motorcycles, boats, and lawn tractors—one tool for all your battery needs.
PRECISION POWER DIAGNOSTICS - Accurately tests 6V & 12V batteries up to 1000 CCA for all your vehicles.

The Q-Tech Battery Load Tester FY-41S delivers reliable, professional-grade testing for 6V and 12V batteries up to 1000 CCA. Featuring a heavy-duty steel case, durable metal switch, and a color-coded analog voltage meter, it simplifies battery and charging system diagnostics across a wide range of vehicles. Its robust clamps and versatile compatibility make it an essential tool for any manager who values efficiency and precision in vehicle maintenance.

Specifications

ASIN	B07T4ZSN3N
Best Sellers Rank	#276,532 in Automotive ( See Top 100 in Automotive ) #216 in Battery Testers
Brand Name	Q-Tech
Color	black
Compatible Devices	6V and 12V vehicle systems, including cars, light trucks, RVs, motorcycles, ATVs, boats, and lawn tractors
Customer Reviews	4.6 4.6 out of 5 stars (454)
Item Dimensions	9.6 x 3.7 x 2.1 inches
Item Weight	2 pounds
Manufacturer	Q-TECH
Maximum Operating Voltage	16 volts_of_direct_current
Measurement Type	Voltmeter
Minimum Operating Voltage	6 volts
Model	FY-41S
Number of Items	1
Part Number	FY-41S
Power Source	Battery Powered
Style Name	Analog
UPC	844957098020
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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9481 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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