The 6 Best 3.7 volt Polymer Batteries (2023 reviews)

It is ideal for replacing a worn out nest thermostat battery. The plastic battery coupler on the pcb is designed to lift up, not pull laterally. You can move these two covers and the outer bezel out of the way to expose the board and remove the battery (and its connectors) from that board. The four screw plate goes on next and you have to carefully line up the screw holes on the plate with the mates on the circuit board. The challenging part is prying the old battery up carefully so you don't puncture it.

The battery that the 3rd generation nest brings is a 4100 mah battery and this one is a 3700 mah battery. It includes a small screw driver and comes in good packaging.

Why We Like This:

New and hot release
Good investment for long term

Jieoto 3.7 volt Polymer Battery

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Not everyone likes to purchase battery for their regular usage, but the jieoto 3.7 volt polymer battery would be an anomoly. The LED's make the battery last longer. It has no memory effect and can be charged and discharged at any time.

Why We Like This:

Keep the cells in a 40%-60% charged state during a long period of storage
Leaking, excellent cost performance, and long cycle life
Protect the battery from over-discharging, over-charging, over-current, output short circuit protection

Jieoto 3.7 volt Polymer Battery

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The jieoto 3.7 volt polymer battery is the best suitable battery on the market today.

Why We Like This:

Overcharge, over-discharge, over-current, short circuit protection, over-temperature protection
Delivers what they promise

Chuanhu 3.7 volt Polymer Battery

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The chuanhu 3.7 volt polymer battery's superior materials makes sure that it ages well with use.

Why We Like This:

High quality 302323 rechargeable lithium polymer battery with two wire leads
High energy density and extra long lifespan, provides continuous power supply for your device
Very low self discharge and low internal resistance

Freedoh 3.7 volt Polymer Battery

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The freedoh 3.7 volt polymer battery's superior materials makes sure that it ages well with use.

Why We Like This:

Delivers what they promise
New and hot release

Freedoh 3.7 volt Polymer Battery

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate battery. The freedoh 3.7 volt polymer battery is exactly that - it's a simple battery that hits all the right notes.

Why We Like This: