Charging battery charger

Hi Robert , can you clarify what you mean by a trickle charger ?, any chance of a photo of the charger ?

using a standard gel battery charger , the charger will charge the batteries in question and once fully charged, the charger will trickle charge the batteries.. This is a standard operation and recommended by battery makers...

Regards
Rob

Hi, it maybe possibly your battery to drained flattened to the point where it cannot accept a charge from the wall charger. the best thing to do is to try and trickle charge your tablet from a low voltage/amperage connection. Either a powered on PC USB port to the charging connector on your tablet, or from a low power phone charger (5v/500ma). It has been pretty well documented that lithium batteries do not like to be drained fully & it may be that the battery in your tablet has drained so low that it cannot accept a charge from the Lenovo a/c charger.

Try a trickle charge for 8-10 hours (or longer) on your tablet & see if that gets enough charge into your battery to enable it to recognise & accept a charge from the a/c charger.

Else it replacement of charger or some hardware failure in your tablet

Some chargers have 2 LEDs (lights), some have one. Both chargers have an LED that is red (or orange) when the charger is charging a battery and turns green when the battery is charged and the charger has dropped back to trickle charge mode or off.
On the charger with two LEDs , the extra LED is normally red to indicate the mains power is connected.

No, do not charge your battery with your key on. Do not remove the connections from the battery. Make sure you have the red connection to red connection and black on the black connection from charger to battery when charging. Otherwise it could explode!

Lift up the seat ,the battery is located underneath.Normally they have a plug with two wires close to the Batt case to connect the trickle charger without disconnecting the Batt....

There could be a lose connection somewhere. Anywhere beween the key to the battery or the starter button to the battery.

Yes to both questions. the charger must sense 41.5 volts to activate the relay inside the charger. Being a repair shop, I have a charger that is rigged to charge even DEAD batteries. I do not recommend this for the novice. A charger set on 12 volts will bring the batteries back up to 8.2-8.6 volts. A cheap trickle charger may not put out enough to charge a battery of this size. Remember that they are used to MAINTAIN a charge. Connect the Voltmeter and watch for voltage rise. If it rises to 8.1 or above, it is charging. Trojan battery company recommends charging at least once a month.

On a Motorola charger, when the battery is charging the light should be a constant red (or amber depending on the charger). When the charge cycle is complete the light will change to solid green. Sometimes the solid green time is brief, as the battery will begin to lose charge, and the charger will go back into trickle mode and change once again to red (or amber). In most cases, a flashing light indicates a problem, such as a bad or shorted battery, an incorrectly seated battery, dirty battery contacts, or a bad connection with the battery. (Note: Batteries last 18-24 months typically. Check your date code for the age of the battery.)

There were several chargers made for the GP360, including but not limited to a 60-minute charger, a 90-minute charger, a 10-hour trickle charger and a 6-unit gang charger which would be a rapid rate, either 60- or 90- minute. If you would supply your charger's model number we could tell you which one you have.

Here is a palm article on the battery not holding charge-

http://kb.palm.com/SRVS/CGI-BIN/WEBCGI.EXE/,/
?St=42,E=0000000000826384196,K=1280,Sxi=19,Case=Obj(30029)

My battery loses its charge very quickly
Like all Lithium Ion batteries, the battery in your device will eventually wear out. If you charge your device fully but it loses power after a few hours (or sooner), it may be time to replace the internal battery.

Sounds like you already did this. Do you have someone you know who has the same battery you could try? Or try your battery in their device?


Also this site looks good -
http://www.ipaqrepair.co.uk/ipaq_battery.php

Step #11

You can connect it via USB and let it charge that way a little while, then try charging it normally. It's called trickle charging-

Trickle charging
Some Palm devices have the ability to "trickle charge" from a USB port on a PC or Mac. This means that it receives a very small amount of charging from the USB port, even if it is not connected to its AC charger. If your device is capable of this function, the charging time will be significantly longer for a trickle charge (depending on the power rating of the PC USB port). However, the device may not charge at all on an unpowered USB hub (or for example off off a keyboard).