GB Groundworks

[fred]

try a reverse polarity zap ....... amazing what that'll do for a tired lead acid battery that won't take a charge ...... blows the salts off the plates ... but do it flat

definitely don't do that it fecks lithium batteries.

 

[Giles]

Ohh soldering iron out and getting my geek on, that computer science degree might come in handy.

battery protection circuit :-

 

[Giles]

Trying the jump

 

[Giles]

Getting 16.7 volts no dead cells, power indicator doesn’t work and won’t charge throws up yellow overheat light

 

[GazCro]

Getting 16.7 volts no dead cells, power indicator doesn’t work and won’t charge throws up yellow overheat light

If its like makita chip in battery will be telling charger battery is knackered and charger won't charge it.

 

[V8Druid]

anyway of fooling the chip? ........ or removing it from circuit?

 

[fred]

If its like makita chip in battery will be telling charger battery is knackered and charger won't charge it.

last chance then. put it in the freezer overnight, take it out and let it thaw then try one last time ....

 

[V8Druid]

knowing these companies, that little chip probably has a counter in it ... reach the target and off it goes ... planned obsolescence ... continued sales strategy .......... chips replaceable????

 

[Giles]

last chance then. put it in the freezer overnight, take it out and let it thaw then try one last time ....

Freezing Batteries

Had some'' long dead'' 18 volt Ni-cads(Dewalt) sitting around for about a year. Read something about throwing them in the freezer and then charging them............it worked!:w00t: Did 2 of them and used them both all day yesterday. This is supposed to be a temp fix but was a fun thing to try...

www.contractortalk.com

it is a 2017 battery

should work for the light build though

 

[Lancs Lad]

Interesting stuff, had a decent Unilite 1000 Lumen little worklight that died (must have let it go dead) , they replaced foc under warranty but in chatting to their tech guy he was adament once the li on batts gone "dead" it's beyond help.... No way or "recovering" it.

 

[GazCro]

knowing these companies, that little chip probably has a counter in it ... reach the target and off it goes ... planned obsolescence ... continued sales strategy .......... chips replaceable????

Supposedly the makita batteries are monitored by the charger. When you put the battery on charge the charger checks battery condition temperature etc. If its picks a fault up the charger flashes to tell you and you unplug and plug the battery on again. Now so I'm told if the charger picks a fault up 3 times in a row on a battery it will tell the chip in the battery is faulty and thats it no makita charger will charge that battery again. Possibly aftermarket chargers might charge them. I don't know if dewalt is the same.

 

[GazCro]

Ohh soldering iron out and getting my geek on, that computer science degree might come in handy.

battery protection circuit :-

When i adapted my makita torch i left the circuit board inside connected, I'm guessing now it's a battery protection circuit so glad i did.

 

[Giles]

Freezer test failed, going to try get a non dewalt lithium charger and use my 2 knackered batteries for my light I’m building

 

[fred]

LioN cells dont like being flattened.

 

[doobin]

You buy the Chinese knockoff charger that ignores the makita chip....

 

[Giles]

Battery development, Bought the dewalt work light tripod and the two knackered batteries work in it...

 

[doobin]

Battery development, Bought the dewalt work light tripod and the two knackered batteries work in it...

Yeah, if they drop a cell they will still run an LED. I have a Makita battery with purple paint on it for this reason.

 

[Giles]

Air over hydraulic actuators arrived for mini low loader, just waiting on pipe bits then will get it connected up.

Tree came down on our local station drive, so I helped the railway lads out and moved it with telehandler. They cut it up and I got the logs, new house has 2 wood burners so starting to stockpile

 

[Giles]

been designing new logo for a bit of a polish of all things business related, this is current favourite

 

[Lancs Lad]

been designing new logo for a bit of a polish of all things business related, this is current favourite

Looks tidy think big ! With that machine.