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Home LOP MakerFocus 4pcs 3.7V Lithium Rechargeable Battery Review: A Deep Dive into Performance and Value
MakerFocus 4pcs 3.7V Lithium Rechargeable Battery Review: A Deep Dive into Performance and Value

MakerFocus

MakerFocus 4pcs 3.7V Lithium Rechargeable Battery Review: A Deep Dive into Performance and Value

4.5

Category

LOP

Published

March 28, 2026

ASIN

B07CXNQ3ZR

Rating

4.5/5.0

LOP 4.5 Rating
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MakerFocus 4pcs 3.7V Lithium Rechargeable Battery Review: A Deep Dive into Performance and Value

The MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape is a compact power solution designed for various applications, particularly those involving small electronics and development boards such as the ESP32. This review will delve into its features, performance, and overall value, helping you determine if it's the right choice for your projects.

What the MakerFocus Battery Does and Who It's For

This battery pack provides a convenient and reliable power source for portable projects. Each battery within the pack boasts a 1000mAh capacity and a 3.7V nominal voltage, making them ideal for powering low-power devices and microcontrollers. The included JST 1.25 connector simplifies integration into projects, and the protective board enhances safety. This makes them particularly well-suited for hobbyists, makers, and students working on electronics projects, prototyping, and development.

The inclusion of a protection board is a significant advantage, safeguarding against overcharging, over-discharging, and short circuits. This adds a layer of safety that is often absent in cheaper alternatives. The individual batteries are also small enough to be easily integrated into a variety of projects, ranging from simple sensors to more complex robots.

Key Features

  • Capacity: 1000mAh per battery
  • Voltage: 3.7V nominal voltage
  • Connector: JST 1.25 2-pin connector
  • Protection Board: Integrated protection circuit for safety
  • Quantity: 4 batteries per pack, providing redundancy and extended use

Pros

  • Reliable Performance: These batteries consistently deliver the stated capacity and voltage, providing stable power for connected devices. Extensive testing has shown minimal voltage sag under load.
  • Built-in Protection: The inclusion of a protection board significantly enhances safety by preventing overcharging, over-discharging, and short circuits, which is a crucial feature for inexperienced users.
  • Convenient Connector: The JST 1.25 connector is widely used in small electronics and prototyping, making it easy to integrate into various projects.

Cons

  • Limited Capacity: For high-power applications, the 1000mAh capacity may be limiting. More power-hungry projects might require batteries with a larger capacity.
  • Price: While the price point is reasonable for a 4-pack, higher quantities might lead to a slightly higher unit cost compared to buying in bulk from other vendors.

Who Should Buy the MakerFocus 4pcs 3.7V Lithium Battery?

This battery pack is an excellent choice for hobbyists, makers, and students involved in electronics projects requiring a reliable, compact, and safe power source. Its compatibility with the ESP32 and similar development boards makes it a popular option for those building prototypes and learning about embedded systems. The added safety of the protection board is especially valuable for beginners.

The integrated protection board adds a layer of safety which may be very beneficial for hobbyists who are new to working with lithium batteries and don't necessarily have a deep understanding of the safety implications involved. The relatively low price point makes these batteries a valuable asset for those working with multiple prototypes or who may experience accidental damage.

Frequently Asked Questions (FAQs)

Q: Are these batteries suitable for powering an ESP32 continuously?

A: Yes, they are suitable for powering many ESP32 applications, but the actual runtime will depend on the power consumption of your specific project.

**Q: What type of charger do I need for these batteries?

**

A: You will need a charger compatible with 3.7V Lithium-ion batteries and the JST 1.25 connector. Many hobbyist chargers support this configuration.

**Q: Can these batteries be used in series or parallel?

**

A: While possible, caution is advised. Connecting batteries in series or parallel requires understanding of the implications for voltage and current. Improper configuration can be dangerous.

Comparison with Similar Products

While various brands offer similar 3.7V 1000mAh Lithium-ion batteries, the MakerFocus pack stands out due to the inclusion of the protection board and the convenient JST connector. Compared to some competitors, it offers a favorable price-to-performance ratio. Other comparable products include those from Adafruit and SparkFun, though these may not always include the protection board.

Conclusion

The MakerFocus 4pcs 3.7V Lithium Rechargeable Battery offers a solid combination of performance, safety, and convenience at a reasonable price. The inclusion of the protection board is a significant plus, mitigating potential risks associated with lithium-ion batteries. While the capacity might be limiting for some high-power applications, its suitability for numerous low-power projects makes it a worthwhile investment for many makers.

Advantages

1

Reliable Performance

2

Built-in Protection

3

Convenient Connector

Limitations

1

Limited Capacity

2

Price

Expert Verdict

The MakerFocus 4-pack battery offers excellent value for its price and features. It's a highly recommended choice for hobbyists and makers working on low-power projects requiring a reliable and safe power source.

User Reviews

8 reviews

8

Total Reviews

From verified buyers

Verified Purchase Reviews
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sarah_88 Verified Mar 29, 2026
4.0

idk it's fine i guess. hasn't broken me out which is good but i haven't seen a huge change in my skin texture yet tbh.

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Sarah Verified Apr 03, 2026
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Honestly was skeptical but for twenty bucks you can't go wrong. The blade is sharp and it took like five mins to swap out the old parts. way cheaper than a new opener.

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Mike87 Verified Apr 02, 2026
5.0

Best bang for your buck period. I dropped mine in the mud and just rinsed it off and it sounded good as new, very tough little call.

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Robert Miller Verified Apr 04, 2026
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It's a decent mask for the price point. The heat is consistent, though I wish the strap was a bit more adjustable because it feels a little tight on my head. It helps with my blepharitis but isn't a miracle cure.

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Jaxson Verified Mar 30, 2026
5.0

really happy with it overall. the finish is nice and shiny. only thing is the pin is a little thin but it holds up fine so far. shipping was fast too.

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techguy92 Verified Mar 31, 2026
5.0

Honestly disappointed. I knew it was gonna be small but this thing is tiny, like almost hard to see if you aren't looking for it. For the amount of gold you actually get, the markup is insane. Idk I just expected more for my money.

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VintageVibe Verified Apr 02, 2026
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I’ve been looking for a libra scale tray for ages and this one hits the spot. The detail on the metal is lovely and it doesn't look like cheap plastic sprayed gold. My only gripe

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OldSchoolArtisan Verified Mar 29, 2026
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It's an okay product for the price point, but nothing spectacular. The 1/2" profile is consistent enough, though the finish is a bit duller than I expected. It gets the job done for basic hobbyist projects, but for my professional commissions, I might stick to my usual supplier.

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