Can this product be used on a deep charge golf-cart battery?

It can only be used to detect the car battery, not to charge the battery. Our BM550 battery tester can test all 6v 12v 24v 100-2000 CCA car batteries.

Will this tester accurately measure internal resistance in a 12V deep cycle lawnmower battery?

It measures 6v 12v and 24v system batteries. It does read internal resistance but I’m not sure how accurate that particular measurement is because I have never compared this other battery testers.

How do i know if my car battery test result soh, soc, and cca numbers are good or not?

Not sure about social or soh. Cca is one of two prompted questions. If you are not sure of target cca, you might need to look up you battery model and confirm. Once you input cca, the meter goes through a test cycle and gives you actual cca. It decides good or bad based on the cca you input.

Will it give the remaining ah amp hours for batteries or just cca?

Reported values are CCA's. Remaining AH isn't part of the output. You could, roughly, determine the remaining AH through the SOC (State of Charge). For sake of example, if the battery is a 10AH battery, and the SOC = 80%, then you have, roughly, 8AH "left" in the battery. That's not exactly the best way to derive that but it's a ballpark. The element that isn't taken into account is why the battery SOC is where it's at (e.g. age, degradation, discharge due to parasitic draw, etc.). Depending on the combination of those factors will determine what the actual AH capacity is, at that SOH and SOC.

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KINGBOLEN BM550 6V 12V 24V Car Battery Tester, 100-2000 CCA Voltage Tester 2Ah-220Ah Internal Resistance Tester Accurate Digital Auto Battery Analyzer for Cars Trucks SUV ATV Boats Motorcycles Vehicle

KINGBOLEN BM550 6V 12V 24V Car Battery Tester, 100-2000 CCA Voltage Tester 2Ah-220Ah Internal Resistance Tester Accurate Digital Auto Battery Analyzer for Cars Trucks SUV ATV Boats Motorcycles Vehicle

Product ID: 418733428

Details

Brand
KINGBOLEN
Color
Black Red
Item dimensions L x W x H
4.88 x 2.74 x
Power Source
Battery
Style
BM550 battery

⚡100-2000 CCA testing range

📊Accurate SOH & SOC digital readout

🔋6V/12V/24V multi-voltage support

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C$2602

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

Details

Brand
KINGBOLEN
Color
Black Red
Item dimensions L x W x H
4.88 x 2.74 x

Description

🔧 Power up your ride with precision — never get caught off-guard again!

PRECISION CCA TESTING - Measures Cold Cranking Amps from 100 to 2000 CCA, ensuring your battery’s true power is always known.
USER FRIENDLY HD DISPLAY - 1.8-inch high-definition screen delivers clear, fast, and accurate results both in-vehicle and out-of-vehicle.
BUILT IN SAFETY DURABILITY - Reverse connection protection and rugged clips guarantee safe, long-lasting use without risk of damage.
UNIVERSAL VOLTAGE COMPATIBILITY - Seamlessly tests 6V, 12V, and 24V batteries for cars, trucks, SUVs, and more.
COMPREHENSIVE BATTERY HEALTH INSIGHTS - Instantly reveals State of Health (SOH), State of Charge (SOC), internal resistance, and voltage for total battery transparency.

The KINGBOLEN BM550 is a compact, professional-grade car battery tester supporting 6V, 12V, and 24V batteries with a wide 100-2000 CCA range. It delivers accurate digital readings of battery health, charge, internal resistance, and voltage on a crisp 1.8-inch HD screen. Designed for DIYers and pros alike, it features reverse polarity protection and works on various battery types including AGM, GEL, and EFB. Perfect for cars, trucks, SUVs, ATVs, boats, and motorcycles, this tester ensures you stay ahead of battery failures with quick, reliable diagnostics.

Specifications

ASIN	B09TNFLNGL
Best Sellers Rank	#13,700 in Automotive ( See Top 100 in Automotive ) #20 in Battery Testers
Brand	KINGBOLEN
Brand Name	KINGBOLEN
Color	Black, Red
Customer Reviews	4.5 out of 5 stars 2,847 Reviews
Included Components	NO
Item Dimensions	4.88 x 2.74 x 0.89 inches
Item dimensions L x W x H	4.88 x 2.74 x 0.89 inches
Manufacturer	KINGBOLEN
Measurement Type	Ohmmeter
Min. Operating Voltage	6
Minimum Operating Voltage	6
Model	BM550
Part Number	KBL550
Power Source	Battery Powered
Specification Met	Cca
Style	BM550 battery tester
Style Name	BM550 battery tester
UPC	756029690011
Upper Temperature Rating	50 Degrees Celsius

Reviews

M**T

6.11.2023

H**H

22.02.2026

D**.

5.12.2025

T**K

21.03.2024

T**M

28.02.2026

B**T

1.05.2026

M**X

28.04.2026

C**O

3.09.2023

P**T

7.04.2026

M**L

10.07.2025

A**E

10.01.2026

U**S

8.11.2025

W**I

25.04.2026

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C$2602

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In stock

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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 Nicaragua.

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