Can you jump start a car with this? I feel like no. Id like to know why if so as in what damage could be done?

There will be no damage jumping a car from this battery. Only part that is at risk is the dead lead acid battery, that likely needs replacing regardless. However, you should not use one of these 12v LFP's to replace your lead acid. Alternators do not make stable power to charge lithium batteries.

The 2 50ah batteries are mounted in series in the pride mobility scooter to power a 24 volt motor. Charging is via a 3 pin xlr connector. What charger

To charge 24V 50Ah battery system, the DC charging voltage should be between 28.4V~29.2V, and charging current less than 50A.

Could the 300ah 12v be used to start a 3 cylinder 23hp diesel engine?

Since our battery is not a car battery, we do not suggest using it as a start-up battery. Our battery will be more suitable for house batteries. You could also kindly offer more details of your application, and I could see whether we could offer some suggestions to you.

No low temperature cut off? I see replies both yes and no. Which is it?

Hi there, thank you for your inquiry. Unfortunately, the 12V190Ah battery does not have a low-temperature cut-off function. However, we have upgraded 12V100Ah and 12V200Ah with an auto-heating function that may fit your purpose. The auto-heating battery can be charged at ambient temperatures of -4°F/-20°C. I hope this helps.

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12V 300Ah LiFePO4 Lithium Battery for RV, Travel Trailer

Product ID: 488245300

Details

Battery Cell Composition
Lithium Ion
Brand
power queen
Item Weight
21 pounds
Number Of Cells
4
Product Dimensions
6.6"D x 10.2"W
Resistance
40 milliohms

📱Bluetooth Smart Monitoring

🔋100Ah high capacity

❄️All-weather low-temp protection

€ 2011.99

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Description

⚡ Power your journey with smart, lightweight, and weatherproof energy!

RELIABLE RUGGED - Automotive-grade LiFePO4 cells with smart BMS and IP65 waterproof rating ensure long-lasting, stable performance.
LIGHTWEIGHT POWERHOUSE - At just 21.9 lbs, enjoy 63% less weight with 1280Wh usable energy—perfect for RVs, marine, and trailers.
EXPANDABLE ENERGY FREEDOM - Scale your power from 1 to 16 batteries (up to 20.48kWh) for off-grid living or extended trips.
BUILT FOR EXTREME CONDITIONS - Automatic charging/discharging cutoffs below freezing protect your battery in harsh winter adventures.
STAY CONNECTED STAY POWERED - Real-time battery health & voltage monitoring via Bluetooth app keeps you ahead of the charge curve.

The Power Queen 12V 100Ah LiFePO4 Lithium Battery delivers 1280Wh of usable energy in a compact, lightweight design. Featuring Bluetooth 5.0 smart monitoring, all-weather low-temp protection, and expandable capacity up to 20.48kWh, it’s engineered for RV, marine, and off-grid applications. With automotive-grade cells, IP65 waterproofing, and a 5-year warranty, it offers reliable, long-lasting power for modern adventurers.

Specifications

ASIN	B0BKL6G5BT
Automotive Fit Type	Universal Fit
Battery Capacity	300 milliamp_hours
Battery Cell Composition	Lithium Ion
Battery Type	Lithium Ion
Best Sellers Rank	#89,814 in Health & Household ( See Top 100 in Health & Household ) #178 in 12V Batteries
Brand	power queen
Brand Name	power queen
Compatible with Vehicle Type	RV
Customer Reviews	4.6 out of 5 stars 36 Reviews
Included Components	1 * Power Queen 12.8V 300Ah RV LiFePO4 Battery, Insulating Caps for Bolts, M8 - 5/8" (16MM) Terminal Bolts, Product Manual
Item Dimensions D x W x H	9.33"D x 20.55"W x 8.58"H
Item Highlight	3840Wh, 200A BMS Protections, Max 4P4S, Up to 15000 Deep Cycles at 60% DOD for Motorhome, Off-Grid Home Backup, Camper
Item Weight	27.16 kg
Manufacturer	Power Queen
Manufacturer Part Number	P12V300-200-Basic-8-A200-DE
Manufacturer Warranty Description	5 Year Warranty
Model Number	12V300Ah Basic
Number Of Cells	4
Resistance	40 milliohms
Size	1 Pack
Terminal	M8
Unit Count	1 Count
Vehicle Service Type	RV
Voltage	12.8 volts

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€ 2011.99

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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