what is the internal resistance of one of these batteries?

Thank you for your question, the internal resistance is around 30-50 milliohms.

Can this be used to power a 12v winch

Thank you for your question, you need to check what is the working current of power a 12v winch, the working current of our 36Ah battery is 36A, if the current is less than or equal to 36A then you can use it.

Can 6 of these be hooked up in series? my ups has a 72v setup. i would like to use these batteries instead but can’t find specifics.

Thank you for your question, there is no substitute as our batteries can only be connected in series with a maximum of 4.

Can this be used with a Batcaddy golf cart?

Thank you for your question, yes, if you are using two or more batteries in series, it is recommended that you use a Lifepo4 charger to charge the batteries.

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NERMAK 12V 7Ah (7.2Ah) Lithium LiFePO4 Deep Cycle Battery, 2000+ Cycles Lithium Iron Phosphate Rechargeable Battery for Solar Powar, Lighting, Ride on Toys, Fish Finder and More, Built-in 8A BMS

Product ID: 468443395

Details

Battery Capacity
7 amp_hours
Battery Cell Composition
Lithium Ion
Brand
NERMAK
Item Weight
2 pounds
Number Of Cells
1
Product Dimensions
5.94"D x x

⚡8A continuous heavy-duty output

🔋2000+ cycles lifespan

🔌Built-in 8A BMS protection

€ 92.88

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power Smarter, Last Longer — Join the Lithium Revolution!

SMART SAFETY SHIELD - Integrated 8A Battery Management System safeguards against overcharge, over-discharge, short circuits, and over-current for worry-free use.
POWER WITH PRECISION - 8A continuous discharge and 2C pulse output deliver reliable, heavy-duty energy for your solar setups, ride-on toys, and more.
VERSATILE EXPANDABLE - Connect up to 4 batteries in series or parallel to scale your power needs effortlessly—perfect for evolving tech and outdoor adventures.
ENDURANCE THAT OUTLASTS - Experience 2000+ deep charge cycles—quadruple the life of traditional lead-acid batteries, keeping you powered longer without compromise.
ECO FRIENDLY ENERGY UPGRADE - Lithium iron phosphate chemistry means no memory effect, ultra-low self-discharge, and a greener alternative to lead-acid batteries.

The NERMAK 12V 7Ah LiFePO4 deep cycle battery offers a robust 2000+ cycle lifespan with built-in 8A BMS protection, delivering safe, reliable, and eco-friendly power. Ideal for solar systems, ride-on toys, fish finders, and more, it supports series/parallel expansion and heavy-duty 8A continuous discharge, making it a versatile upgrade over traditional lead-acid batteries.

Specifications

ASIN	B0B78HTRDL
Battery Capacity	7 amp_hours
Battery Cell Composition	Lithium Ion
Battery Type	Lithium Ion
Best Sellers Rank	#59,127 in Health & Household ( See Top 100 in Health & Household ) #98 in 12V Batteries
Brand	NERMAK
Brand Name	NERMAK
Compatible with Vehicle Type	Fish Finder, 12V Routers,Game Cameras,Radio
Customer Reviews	4.2 out of 5 stars 379 Reviews
Included Components	1*12.8V 7Ah Lifepo4 battery
Item Dimensions D x W x H	5.94"D x 2.56"W x 3.71"H
Item Weight	2 pounds
Manufacturer	Huizhou Yu'an Technology Co., Ltd.
Manufacturer Part Number	12V 7A
Manufacturer Warranty Description	1 year
Model Number	12V7A
Number Of Cells	1
Number of Items	1
Size	12V 7Ah
Terminal	F2 Terminal
Unit Count	1 Count
Vehicle Service Type	Fish Finder, 12V Routers,Game Cameras,Radio
Voltage	12.8 volts

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€ 92.88

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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