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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12V 7Ah

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 BMS for ultimate safety

13820 som

Duties & taxes included

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your life smarter, longer, safer — don’t get left in the dark!

ECO FRIENDLY ENERGY - Lithium iron phosphate chemistry means no memory effect, low self-discharge, and greener operation.
SMART SAFETY INSIDE - Integrated 8A Battery Management System guards against overcharge, discharge & short circuits.
POWER WHEN IT COUNTS - 8A continuous discharge with 2C pulse for reliable, heavy-duty performance.
VERSATILE EXPANDABLE - Connect up to 4 batteries in series or parallel—customize your power setup effortlessly.
ENDURANCE THAT OUTLASTS - 2000+ deep cycles vs. 300-500 lead-acid—stay powered longer, stress less.

The NERMAK 12V 7Ah LiFePO4 deep cycle battery delivers over 2000 recharge cycles with a built-in 8A BMS for superior safety and performance. Ideal for solar power, lighting, ride-on toys, and more, it supports series/parallel expansion and heavy-duty 8A continuous output, making it a reliable, eco-friendly upgrade over traditional lead-acid batteries.

Specifications

ASIN	B0B78HTRDL
Battery Capacity	7 Amp Hours
Battery Type	Lithium Ion
Best Sellers Rank	#34,635 in Health & Household ( See Top 100 in Health & Household ) #60 in 12V Batteries
Brand Name	NERMAK
Compatible with Vehicle Type	Fish Finder, 12V Routers,Game Cameras,Radio
Customer Reviews	4.2 4.2 out of 5 stars (373)
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
Size	12V 7Ah
Terminal	F2 Terminal
Unit Count	1.0 Count
Voltage	12.8 Volts

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13820 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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