For 200a lithium with 50%. How long does it take full charge?

As a base line it is pure math. If you have a 200 AH battery that is half charged it will take 100 AH worth of charging to bring it up to full. This charger has a max 20A rating so 100 AH divided by 20 A = 5 hours. Since nothing works at 100% efficiency and since the charge rate is variable you should add 10% - 20% in charge time, or up to 1 additional hour. Call it 5 to 6 hours to charge your 50% depleted battery. That is not only true for this charger but virtually ALL chargers / charge rates. Do the math for a 5 Amp charger or for a 40 Amp charger. The formula is the same.

You mentioned that after a lifepo4 charge, there will be a power failure!’… Can you please explain what is the “failure”?

Hello, friend. For example, the P20 Smart Battery Charger normally charges the 12V Lifepo4 Battery to 14.6V and automatically stops working, because the measured Battery characteristics may be about 14.3V, which is considered normal if it is lower.

Can this item be used to recharge the gel batteries for my electric scooter?

Hello! Yes, smart chargers. Lithium, Lifepo4, Lead acid (AGM/Gel/SLA..) Battery charger, trickle charger. Adjustable current, optional battery type.

I have been leaving a 12v 100ah deep cycle battery agm fir 3 days straight on pulse/repair mode. how long should the charger take?

no longer than 12 hours i would try another charger. if it works then your 1st charger is bad

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- 20-Amp Smart Battery Charger,12V/20A and 24V/10A.Lithium,Lifepo4,Lead-Acid(AGM/Gel/SLA..) Car Battery Charger,Trickle Charger, Maintainer/Pulse Repair Charger,for Car ,Boat,Motorcycle, Lawn Mower

Product ID: 682549476

Details

Brand
RCGCBC
Colour
wak-qc-485
Item Weight
1.04 Pounds
Output Voltage
24 Volts (DC)
Product Dimensions
5D x 9W x

⚡20A max charging current

🔋Supports Lithium, LifePO4 & Lead-Acid

🛡️Multi-layer battery & safety protection

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96401CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Charge Smarter, Drive Longer — Never Get Left Behind!

PULSE REPAIR TECH - Revives and extends battery life with advanced pulse repair — don’t replace, restore!
RAPID POWER BOOST - Delivers up to 20A for ultra-fast, efficient charging on 12V & 24V batteries.
SMART AUTO DETECTION - Intelligent CPU auto-identifies battery type & voltage, optimizing charge without risk.
BUILT FOR SAFETY DURABILITY - Flame-retardant ABS shell, reverse polarity, overcharge & temperature protections for worry-free use.
UNIVERSAL BATTERY COMPATIBILITY - Seamlessly charges Lithium, LifePO4, AGM, Gel, SLA & more — one charger for all your rides.

This 20-Amp Smart Battery Charger offers intelligent, high-speed charging for 12V and 24V batteries including Lithium, LifePO4, and various Lead-Acid types. Featuring automatic battery recognition, pulse repair technology, and comprehensive safety protections within a compact, durable design, it’s engineered to extend battery life and ensure reliable power for cars, motorcycles, boats, and more.

Specifications

ASIN	B09PVFYJSP
Amperage	20 Amps
Best Sellers Rank	#14,915 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #118 in Battery Tools
Brand	RCGCBC
Brand Name	RCGCBC
Colour	wak-qc-485
Connector Type Used on Cable	AC power plug
Current Rating	20 Amps
Customer Reviews	3.9 out of 5 stars 39 Reviews
Input Voltage	240 Volts
Item Dimensions D x W x H	5D x 9W x 15.8H Centimeters
Item Weight	1.04 Pounds
Item Weight Unit of Measure	1.04 Pounds
Manufacturer	HTRC-RC
Manufacturer Part Number	HU-XI-201
Model Number	20A
Number of Ports	2
Output Voltage	24 Volts (DC)
Product Dimensions	5D x 9W x 15.8H Centimeters
Specification Met	certified frustration free

Reviews

P**R

Great product.

Great product Light weight, Easy to use. Very compact. I am surprised to see such a compact battery charger and yet very effective. Just go for it 👍

20.07.2025

J**Y

smart charger

it's quite better than i hope, it recovered my battery I can't even used for 1 hours, but now it last hole night .so go for it, you won't regret for having this smart charger.

31.08.2025

C**H

the battery charger you need

A must-have utility product, especially for this price range. With this, I have fully charged a lead-acid battery and a LiPo4 battery in series separately, with an approximate capacity of 150 Ah and a voltage of 26.7 V. When fully charged, the device gets automatically shuts off—no question of overheating, hassle-free operation. Pls refer to the video shots

29.07.2025

S**N

Not works

Never works as explained. Tried in multiple product and returned it

31.12.2025

D**K

Excellent product

Good product it is working good

21.09.2025

J**Y

Good product does everything that is mentioned

It does the job well but the terminal clips were missing on delivery but replacement was sent immediately

17.07.2025

P**.

Very Best

No Thanks

18.01.2026

D**A

Product under performed

This charger not suitable for professionals that why I have returned this

6.04.2026

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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