How long is it? Description says 10.8 inches and manual states 7.8 inches.

Dear friends, I'm sorry, the size of this product is 7.8 * 4.1 * 4.3inch.

Can this be connected in series 24 or 48 volt?

Dear customer，thank you for the question. Yes , you can get 24 volts by connecting two of our 20AH outdoor lithium batteries in series or connecting four batteries in series to get 48 volts. Thanks again for the question, have a nice day!

It it normal for the voltage to decrease over time? my new battery v decreases from 14v to 12v over relatively short time frame - bad battery?

Yes, voltage will decrease over time. Nominal battery voltage is 12.8V. Charge voltage is higher, often 13.5-14.0V, but will decrease within several days back down to around 12.8V. This is quite normal.

Can this battery power an air pump that draws 28 amps? I only need to pump an small inflatable boat once per battery recharge

The 20AH battery can charge your inflatable boat once, but since the starting power of the air pump is relatively high, it is recommended that you use 50AH or 100AH battery https://www.amazon.com/dp/B09L89LW3P?th=1

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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ECO-WORTHY Portable 12V Lithium Battery, 12.8V 20Ah Lithium Iron Phosphate DEEP CYCLE BATTERY, Built-in BMS, 4000+ Cycles, Perfect for Outdoor Camping Fishing RV Marine Trolling Motor Fishfinder

ECO-WORTHY Portable 12V Lithium Battery, 12.8V 20Ah Lithium Iron Phosphate DEEP CYCLE BATTERY, Built-in BMS, 4000+ Cycles, Perfect for Outdoor Camping Fishing RV Marine Trolling Motor Fishfinder

Product ID: 733600230

Details

Number of Batteries
1 Lithium Ion
Brand
ECO-WORTHY
Battery Cell Composition
Lithium Ion
Battery Capacity
20 Amp Hours
Recommended Uses For Product
Scooter
Net Quantity
1.0 Count

⚡4000+ deep charge cycles

🔋12.8V 20Ah power capacity

🛡️Built-in 20A BMS protection

Description

🔋 Power your adventures with confidence and never miss a moment!

COMPACT POWERHOUSE - Ergonomic, portable design fits perfectly in kayaks and small gear
LONG LASTING ENERGY - Over 4000 deep cycles and 10+ years lifespan for unmatched reliability
SMART SAFETY SHIELD - Advanced BMS guards against overcharge, discharge, and overheating
ECO FRIENDLY EFFICIENCY - Lithium Iron Phosphate tech delivers higher efficiency and less maintenance
VERSATILE OUTDOOR READY - Ideal for camping, fishing, RVs, and powering USB devices on the go

The ECO-WORTHY Portable 12V 20Ah Lithium Iron Phosphate battery offers a compact, lightweight design with built-in 20A Battery Management System for superior safety and performance. Delivering over 4000 deep cycles and a lifespan exceeding 10 years, it’s perfect for outdoor enthusiasts needing reliable, eco-friendly power for camping, fishing, RVs, and small electronics.

Specifications

ASIN	B095GYPBTW
Amperage	20 Amps
Antenna Location	Scooter
Battery Capacity	20 Amp Hours
Battery Cell Composition	Lithium Ion
Battery Cell Type	Lithium Ion
Battery Weight	2300 Grams
Best Sellers Rank	#229,849 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Agricultural Vehicle Batteries & Battery Cables
Box Contents	Battery
Brand	ECO-WORTHY
Brand Name	ECO-WORTHY
Item Dimensions	25.6 x 14.9 x 15.2 Centimeters
Item Weight Unit of Measure	5.42 Pounds
Manufacturer	ECO-WORTHY
Model Name	12.8V20AH
Model Number	L13060203002-1
Net Quantity	1.0 Count
Number of Batteries	1 Lithium Ion batteries required. (included)
Recommended Uses For Product	Scooter
Reusability	Rechargeable
Unit Count	1.0 Count
Voltage	12.8 Volts (DC)

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