Charging the battery - Precor EFX 546i Elliptical Version 4

The charging error code "Err 3" on a Roomba 560 vacuum cleaner typically indicates a problem with the battery or charging system. Here are a few things you can try to troubleshoot the problem:

1. Check the battery: Make sure that the battery is properly installed in the Roomba and that the contacts are clean. If the battery is not properly installed or the contacts are dirty, it may not charge properly.
2. Check the charging station: Make sure that the charging station is properly plugged in and that the outlet is functioning. Also, check that the charging contacts on the Roomba are clean and free of debris.
3. Check the battery life: If the battery is old or has been used frequently, it may no longer hold a charge. In this case, it may be necessary to replace the battery.
4. Check the charging cable: Make sure that the charging cable is not damaged and that the connections are secure. If the cable is damaged, it will need to be replaced.
5. Check the firmware: Make sure that the Roomba's firmware is up to date.

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Below link found battery ground to frame corroded
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Charging Problem - Battery Not Charging but Alternator OK! - Nissan Forum ' Nissan Forums (nicoclub.com)

What phone model and battery model?

Mark
Motorola Support

In case the battery is not getting charged. It can be due to 3 reasons

1. The power adapter through which you are tryiing to charge the battery is u/s Check with another adapter and see if its charging then the problem is with the charger else.

2. Take out the battery and put it on another phone and try to charge it. If it is charging then the problem is with the mobile charging point and not the battery. If not charging then the problem is with the battery only.

3. Mobile charging point is not working due to which the battery is not charging to check this out just put your battery on another phone and check if its charging. If charging then you are required to get your charging point on your mobile repaired.

It can be so simple that the charging circuit protects itself by not charging when the cell voltage is so low.
In some cases, you can gently charge the battery with a older type charger, to bring up the voltage so much that the charging circuit accepts the battery and starts its charging.

try replacing your rectifire becuase that is what charges the battery

Hello,
■ Charging LED 


Charging LED 
Red LED is on = Being charged
Red LED is blinking = Charging error
 Green LED is on = Charging is complete


● If the charge indicator blinks as red, it indicates a battery charging error.
- The battery is not properly inserted
- The terminals of battery are dirty or damaged
If the battery is inserted properly and the charge indicator continues to blink, contact the
nearest Samsung Camera Service Center.


If the charging LED doesn't turn to green could mean a signal that the battery is bad or can't charge 100% anymore = too old, needs a new battery. Hope this helps.

Hi, The Li-ion battery cahrging circuitary is some what complex. For most chargers, the charging procedure is divided into three main phases: ? Pre-charging phase ? Constant-current-charging phase ? Constant-voltage-charging phase In the Pre-charging phase, it utilizes low charging current to protect the battery. However,in most recharging situations, the charged batteries still have some voltage remaining, so the charger does not need to apply this action, and just passes it on to the next charging phase. The constant current and voltage charging phases are the main charging phase for recharging the batteries, where most of the charging energy is transformed into the battery. The maximum charging current for a battery depends on the battery?s rated capacity. For example, one battery rated 700 mAh usually can be charged at 350 mAh to 400mA, for faster charging effort. When the charged battery is Li-Ion, in the last charging procedure, the microcontroller normally maintains regular charging voltage while monitoring charging current to determine when the charging procedure should be completed. When the battery is fully charged, most of the electrical energy is converted to thermal energy, which can result in high battery temperature. In this case, the temperature monitoring function will be added for the solution. But since most Li-Ion batteries on the market also have an over-charging protection function, the temperature detect function is rarely used. So it is better to get your phone charging circuitary checked at a local store rather than to make a charger,coz both may cost you almost same. all the best my friend. regards sreejith