Website Closure Notice

After careful consideration of our long-term business direction, geekmaxi.com will be discontinuing operations as an online store. As of August 21, 2026, we will no longer be accepting new orders.
Rest assured, any orders you have already placed, whether awaiting shipment or in transit, will be honored and fulfilled. Warranty support and after-sales service will continue as usual.

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Website Closure Notice

Dear Customer,

We want to assure you that this transition will not affect any commitments already made to you:

Orders placed prior to this date — including those awaiting shipment or currently in transit — will be completed as normal.
Product warranties remain valid and fully honored for the duration of their original terms.
Your order history and account details will stay accessible, and our support team remains available to assist with any questions.

Looking ahead, we are working with a number of established retail partners so that our customers can continue to find the products they've come to know from us. More details will be made available on our homepage.

We're sincerely thankful for the years of business you've entrusted to us.
Questions can be directed to our team at support@geekmaxi.com.

geekmaxi.com

Frequently Asked Questions

As part of a broader review of our long-term business direction, we have made the decision to discontinue geekmaxi.com as an online store. We're grateful for the years of support our customers have shown us.

All orders already placed — whether awaiting shipment, currently in transit, or already delivered — will be completed as normal. You can track your orders anytime under My Account > Orders.

Yes. Warranty and after-sales support remain fully available for products purchased before August 21, 2026, for the applicable warranty term. For assistance, contact support@geekmaxi.com.

Yes. The website remains accessible so you can view your order history and past purchases at any time.

As of August 21, 2026, this site no longer accepts new orders. We are working with a number of established retail partners so you can continue finding the products you know from us — details are available in our Partner Zone on the homepage.

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FNIRSI HRM-10 Battery Voltage Internal Resistance Tester - Black+Blue

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59,99 €

It can automatically test the internal resistance and voltage value at the same time.
Equipped with TFT high-definition color display, the data is clear and concise.
Customized Kelvin 4-wire connection for accurate measurement.
Voltage and resistance ranges can be adjusted manually.
It is suitable for all kinds of batteries and supports history recording and exporting history measurement data sheet for easy application.

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Description

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FNIRSI HRM-10 Battery Voltage Internal Resistance Tester

Voltage Internal Resistance Battery Tester

FNIRSI battery tester can automatically test internal resistance and voltage values at the same time. The measured value can be used to determine whether the battery quality has decreased.

TFT HD Color Display

The display adopts advanced color HD technology and an excellent layout. Compared with traditional monochrome displays, it can present test results more clearly and vividly, greatly enhancing the user's measurement experience.

Accurate Measurement

Adopts customized Kelvin four-wire connection method to avoid wire and contact resistance and improve measurement accuracy. Users can also manually adjust the voltage and resistance range.

Wide Application Range

Suitable for all kinds of batteries. Car battery tester, household battery. It supports historical records and export data tables of historical measurements. View 8 sets of voltage and resistance values to batch-select batteries.

LED Display Handheld Meter

The resistance measurement range is up to 200Ω and the voltage measurement range is up to 100 V. The device must not be used with a DC voltage higher than 100V. Do not apply AC voltage under any circumstances.

Attention!

This item will be shipped from Chinese warehouse.