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，Auto Battery Analyzer

KINGBOLEN BM550 6V 12V 24V Car Battery Tester，Auto Battery Analyzer

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

📊1.8-inch HD screen for clear data

🔋6V/12V/24V multi-voltage support

🛡️Reverse connection protection

R821

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

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Description

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

PLUG PLAY CONVENIENCE - No complicated setup—just clip on and get real-time diagnostics whether battery is in or out of vehicle.
CRYSTAL CLEAR HD DISPLAY - 1.8-inch high-definition screen delivers fast, accurate readings you can trust.
UNIVERSAL VOLTAGE COMPATIBILITY - Test 6V, 12V, and 24V batteries effortlessly across cars, trucks, and SUVs.
COMPREHENSIVE BATTERY HEALTH METRICS - Instantly check SOH, SOC, internal resistance, and voltage for total battery insight.
FAIL SAFE REVERSE POLARITY PROTECTION - Avoid costly damage with built-in safeguards against incorrect clip connections.

The KINGBOLEN BM550 is a versatile car battery tester supporting 6V, 12V, and 24V batteries with 100-2000 CCA range. Featuring a sharp 1.8-inch HD display, it provides quick, accurate diagnostics including state of health, charge, internal resistance, and voltage. Designed for safety and ease, it includes reverse connection protection and works both in-vehicle and out, making it an essential tool for DIYers and professionals alike.

Specifications

ASIN	B09TNFLNGL
Best Sellers Rank	#17,845 in Automotive ( See Top 100 in Automotive ) #33 in Battery Testers
Brand Name	KINGBOLEN
Color	Black, Red
Customer Reviews	4.5 4.5 out of 5 stars (1,429)
Included Components	NO
Item Dimensions	4.88 x 2.74 x 0.89 inches
Manufacturer	KINGBOLEN
Measurement Type	Ohmmeter
Minimum Operating Voltage	6
Model	BM550
Number of Items	1
Part Number	KBL550
Power Source	Battery Powered
Specification Met	Cca
Style Name	BM550 battery tester
UPC	756029690011
Upper Temperature Rating	50 °C

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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R821

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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