Teardown: GoKWh 12V 100Ah LiFePO4 Battery Built-in Smart Bluetooth & LCD Display | Great Price entry-level Model

At a glance

Cells: BYD 47.7Ah LiFePO4 pouch cells (Datasheet)

BMS: JBD 100A, Model: JBD-DP04S007-S V1.6

Bluetooth/App: √

Low-temperature cut-off protection: √

3 Similar Models

Before we get into this, I want to explain a bit because GoKWH’s product lineup can be confusing. They offer 3 similar-looking models on their website.

LCD Version vs. Bluetooth + Smart LCD Version Teardown Compare

It’s important to note that there are different models available, with varying features and price points. The model under review distinguishes itself with its built-in Bluetooth and LCD screen, providing users with detailed real-time information about the battery’s status.

External Overview

Packaging

The battery comes in a well-protected box, ensuring it arrives in perfect condition. The packaging is designed to withstand the rigors of shipping, with high-density foam providing a snug fit. The attention to packaging detail suggests a commitment to quality and customer satisfaction.

Dimension & Weight

Materials & Accessories

Bluetooth App & LCD – Provide excellent stats and monitoring

The standout features of this battery are its built-in Bluetooth and LCD display. Integrated into the top of the battery, the user-friendly LCD screen provides real-time data on battery charge status, voltage, current, and temperature at a glance. However, it lacks temperature readings. In contrast, this battery has all these functionalities built-in, eliminating the need for a shunt installation or the connection of an additional monitor. The value and convenience that this battery offers are truly exceptional.

The app shows the battery’s voltage, current, temperature, state of charge, remaining capacity, estimated charge time, total voltage, power in wattage, average voltage, cycle index count, MOSFET temperature, and humidity. The app also allows you to control the charge switch, clear warnings, and reset capacity.

Performance

Low-Temperature Cut-off Test

In the review of the GOkWh LiFePO4 12V Battery, YouTuber @Roll2 Videos found that although the battery is equipped with a BMS (Battery Management System) and has a low-temperature protection feature, the BMS cut off the charging when the temperature dropped below -1°C during the actual test, whereas the ideal low-temperature protection for a lithium iron phosphate battery should be set at 0°C. This suggests that the battery’s low-temperature protection setting may be set too low and needs to be adjusted to ensure the safe use of the battery in low-temperature environments. YouTuber @Roll2Videos advises users to check and adjust the parameters of the BMS themselves when using the battery to ensure that it operates within the appropriate temperature range and to avoid performance degradation or damage caused by low temperatures.

Battery Teardown

BMS

They used a 12V 100A Smart JBD BMS, model JBD-DP04S007-S V1.6. JBD looks like a beast. I love building quality!

The Battery Management System (BMS) is a crucial component, ensuring the battery’s safety and performance. The BMS in the GoKWh battery is well-designed, with a heat sink for the MOSFETs and temperature sensors.

Cells

Teardown the core part of the battery cells, it becomes evident that BYD 47.7Ah LiFePO4 pouch cells (Datasheet) are utilized, as referenced in their datasheet. Each of these pouch cells is observed to be coated with a layer of black foam, giving the impression that they may have been disassembled from various sources. Despite this, they have successfully passed rigorous tests for voltage and capacity, ensuring their functionality and reliability.

Final Thoughts

The GoKWh 12V 100Ah LiFePO4 Battery is an excellent entry-level option for those looking for a reliable and affordable lithium battery. Its performance, features, and build quality make it a standout choice in the market. With the limited-time discount, it’s an even more compelling option for those considering a lithium battery upgrade.