Question 1

Warning indicates to not attach while the battery is still attached to vehicle. Is anyone using this product while battery is in the vehicle. harm?

Accepted Answer

As instructed by Mroinge, I disconnected my battery from my car (in storage in my car port) then used this product for 4 months, reconnecting the battery and disconnecting this device every week and starting my car. All went well until I put the car back into service.......issues with the car's computer system. Eventually scrapped the car, only partially for this set of issues. Just bought a more modern car, my mechanic told me to scrap this MBC010 immediately and use a "battery tender" and to never disconnect the battery from the car. So.....this product seems to be entirely misleading in its representation and application. Beware, beware......

Question 2

the red light keeps flashing. If I wiggle the alligator clamps, the red light will stop flashing but in few minutes, flashing occurs again.

Accepted Answer

According to instructions a flashing red light means it is not charging. I would make sure you have clean battery terminals or check it on another battery you know is good, if it still flashes red it could be a defective charger. Mine only flashes red when it is not hooked up to a battery.

Question 3

What is the voltage output?

Accepted Answer

The voltage output varies depending upon where the charger is in its charge cycle and the state of charge of the battery.  The maximum voltage I observed was about 14.2 during the charge and about 13.0 during float /maintain.  So this charger should be good for use on AGM batteries, which should not be charged at more than 14.5 v.

Question 4

Can this charge a battery from zero volts? (A good one that was discharged by say leaving interior light on or something.)

Accepted Answer

Hi. I can attest that this charger will NOT start charging a fully discharged 12V lead acid battery. I went away for two months and left my 12V battery disconnected from this charger but with a slow drain on my battery. When I returned, my battery was at zero volts, so I reattached this unit to bring it up. It continually flashed red for a full 12 hours and my battery remained at zero. So I connected a 5A booster for under an hour and then my volts increased to just over 7V. I reattached this unit and bingo! The battery has now maintained over 13V. This has been over four months now, and the green light is now on. I have learnt that this unit requires a small feedback voltage from the battery to function. 
It is a great product. Have had it now over two years and performs very well. I highly recommend as a trickle conditioner/charger.

ASIN	B010NRKERI
Amperage	1 Amps
Battery Charge Time	5.5 Hours
Best Sellers Rank	#19,451 in Automotive ( See Top 100 in Automotive ) #13 in Powersports Battery Chargers
Brand	Mroinge
Built-In Media	is a power adapter
Compatible Devices	Cars, motorcycles, lawn mowers, ATVs, boats, and other vehicles and battery-operated equipment using 12V lead-acid batteries
Connector Type Used on Cable	Alligator Clips and O-Ring Terminals
Current Rating	1 Amps
Customer Reviews	4.6 4.6 out of 5 stars (5,654)
Global Trade Identification Number	00603629518453
Input Voltage	12 Volts (DC)
Item Dimensions D x W x H	2.29"D x 3.45"W x 1.3"H
Item Type Name	Mroinge Automotive Trickle Battery Charger Maintainer 12V 1A Smart Automatic Battery Charger for Car Motorcycle Boat Lawn Mower Sla Atv Wet Agm Gel Cell Lead Acid Batteries
Item Weight	0.35 Pounds
Manufacturer	Mroinge
Mfr Part Number	MBC010
Model Number	MBC010
Number of Ports	1
Output Voltage	12 Volts (DC)
Specification Met	UL, CE, FCC
UPC	603629518453
Unit Count	1.0 Count
Warranty Description	Product quality assurance for 2 years

Trickle Charger 12V 1000mA Smart Battery Charger & Maintainer and Automatic Float Charger for Motorcycle, ATV, Lawnmowers and More

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