How do I recharge the battery?

Be VERY careful with this type of battery! If you do get it wrong you will have a chemical fire on your hands, that won't go out until the reaction has finished. Otherwise, the unit it is intended for will correctly charge it when fitted.

will this battery fit a Nextbase 312G Dashcam.

Yes - it works on our dashcam. There is a Youtube video by someone who shows you how to do it. You will need a soldering iron and solder and some micro screwdrivers to do the work.

Is this battery suited to a next base 522gw

Hi - not sure about it fitting a 522gw, fitted to mine which is a 512gw and works perfectly.

I need a 7.4 v battery for my ebook and the exact replacement is not available in the uk. can i use 2 of these in series ? will it charge correctly ?

Hi, this is a li-ion battery I don't think it is suitable for charging in serial.

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EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase!

Product ID: 241026855

Details

Battery capacity
250 Hour (mAh)
Battery cell composition
Lithium
Brand
EEMB
Number of batteries
1 Lithium
Recommended uses for product
Camera

⚡250mAh Capacity

🔋3.7V Voltage

🛡️Multi-layer PCM Protection

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$22.47

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up your essentials with precision and confidence!

SMART STORAGE TIPS - Maintain 40%-60% charge and store cool for peak battery health and longevity.
CERTIFIED RELIABILITY - UL-certified excellence guarantees safety and long-lasting performance you can trust.
COMPACT LIGHTWEIGHT - At just 5g and 20x32x5mm, it’s the sleek power boost your portable tech craves.
PRECISION POWER MATCH - Ensure perfect polarity and connector fit to avoid device damage—no compromises.
VERSATILE COMPATIBILITY - Ideal for dash cams, Bluetooth speakers, smart home devices, and more—power your lifestyle.

The EEMB LP502030 is a rechargeable 3.7V lithium polymer battery with a 250mAh capacity, designed for compact electronics like dash cams and smart devices. Featuring UL certification and advanced PCM protection, it ensures safe, reliable, and long-lasting power in a lightweight 5g form factor. Perfect for professionals who demand dependable energy on the go.

Specifications

ASIN	B08FD3V6TF
Amperage	500 Milliamps
Antenna Location	Camera
Battery Capacity	250 Milliampere Hour (mAh)
Battery Cell Type	Lithium Polymer
Battery Weight	5 Grams
Best Sellers Rank	5 in Flash Battery Packs 188 in Rechargeable Household Batteries
Brand Name	EEMB
Country of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (1,720)
Item Dimensions	20 x 32 x 5 millimetres
Item Weight	5 Grams
Manufacturer	EEMB
Model Name	LP502030
Model Number	LP502030-PCM
Number of Batteries	1 Lithium Polymer batteries required.
Product Warranty	1
Reusability	Rechargeable
Unit Count	1.0 count
Voltage	3.7 Volts

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