Need recommends on 12v drill battery replacement

[Zero_Enigma]

I own a Mikita 12v NIMH portable drill. The Mikita battery model # 1233 12v 2.2Ah using Mikita model # DC1411 7.2v, 9.6v, 12v, and 14.4v @ 2.1Ah multi-charger.

A while ago both batteries died. Both items above are the stock items that came with the drill package.

I would like some recommends on battery replacements and feedback on places that are good (you have to have some experience with that store) and cheaper then the original Mikita battery which Home Depot sells for ~$90 CDN for IIRC 12v 2.6Ah or 3.0Ah.

I would at best prefer to reuse my charger if I could. One battery already shows 'defective battery' when I put it into the charger. The other charges a bit but I only get about at best 2 mins use out of the battery.

I'm in Canada so I'd like not to be raked over the coals with the shipping if possible.

Thanks in advance. I hope this is the right area to post. I'm in ASAP need of the help.

Prefer buying in Canada if possible but open to USA stores. How are the OEM stuff?

 

[cckw]

I would get them repacked. You can try to find a shop like this in Canada here are a couple in the US.

http://www.toolworksrepair.com/AboutBatteryRebuildservice.html
http://www.voltmanbatteries.com/servlet/the-19/9.6--dsh--18V-REBUILD/Detail

 

[Zero_Enigma]

I would get them repacked. You can try to find a shop like this in Canada here are a couple in the US.

http://www.toolworksrepair.com/AboutBatteryRebuildservice.html
http://www.voltmanbatteries.com/servlet/the-19/9.6--dsh--18V-REBUILD/Detail

Thanks I'll check out the links.

 

[Zero_Enigma]

Anyone else with recommends and experience on this? I'd like to make the move to have an order done by the end of the month or sooner if possible. There is so much stuff slowed down right now without a working 12v cell. :mecry:

 

[GrnXnham]

I can't speak for your specific brand of drill but I've gone through three sets of cordless drills over the last 15 years, and every time my batteries died I found it cheaper to just replace the entire drill and dead batteries with a new drill and battery set rather than just buy new batteries for the old drill.

Have you looked into this? Do you have to keep your old drill for some reason? It may be cheaper to buy a new drill and 2 battery set and you can just recycle the old batteries.

 

[Codswallop]

Don't be too hasty to ditch the batteries and keep the charger. I have a similar Makita that uses 1222 2.0Ah batteries and the DC1410 charger. One of the batteries charges and discharges so quickly as to be useless - on my charger. Using a friends one, it works fine.

On a similar vein, I've recently got my hands on a GT8 hobby charger, and although I'm still experimenting, it has completely refreshed three other tool batteries, - two cheapo 9.6v nicads, and an expensive 24v Bosch which cost more than the charger.

 

[Zero_Enigma]

Don't be too hasty to ditch the batteries and keep the charger. I have a similar Makita that uses 1222 2.0Ah batteries and the DC1410 charger. One of the batteries charges and discharges so quickly as to be useless - on my charger. Using a friends one, it works fine.

On a similar vein, I've recently got my hands on a GT8 hobby charger, and although I'm still experimenting, it has completely refreshed three other tool batteries, - two cheapo 9.6v nicads, and an expensive 24v Bosch which cost more than the charger.

Is there a way I can charge/refresh with a Maha C9000 on my drill pack?

 

[tattoosteve99]

Well I zapped mine with a welder and it works great now.Check that out on you tube. Only do that if it doesnt have a protection circuit in it.Mine where not charging at all and had a reading of 0 after 2 hrs of charging. After the zap process it read 14 volts after they charged and they work Great! Be careful if u try this.Research First!

 

[NutSAK]

I just ordered a pair of replacement batteries from here for a good price. I haven't received the batteries yet, so I can't comment on their service.

I think I'm going to stop using my Dewalt charger for these. Now that I know more about NiCd batteries, I'll be using my hobby charger, monitoring them more closely, and using a storage charge when needed.

I'll try to remember to post here again when I get the batteries.

 

[NutSAK]

I just ordered a pair of replacement batteries from here for a good price. I haven't received the batteries yet, so I can't comment on their service.

I think I'm going to stop using my Dewalt charger for these. Now that I know more about NiCd batteries, I'll be using my hobby charger, monitoring them more closely, and using a storage charge when needed.

I'll try to remember to post here again when I get the batteries.

Uh... nevermind. Needbattery just emailed to say that they're canceling my order since the item didn't ship.

 

[H.Roark]

Battery World in Calgary rebuilt my 9.6 volt nicad pack for $33 taxes in last week. It took a couple of days. Hard to retire a perfectly good drill.

 

[Zero_Enigma]

I need to know if I get a new or rebuilt battery pack can the MAHA C-9000 be used to charge the battery packs?

Right now I've got a 18v nicad XRP Dewalt on loan for 48hrs.

 

[SilverFox]

Hello Zero Enigma,

The C9000 is designed to charge single cells. If you can isolate the cells in your battery pack, you can probably rig something up to charge each cell in the pack using the C9000.

You can't charge it as a battery pack.

Tom

 

[Zero_Enigma]

Hello Zero Enigma,

The C9000 is designed to charge single cells. If you can isolate the cells in your battery pack, you can probably rig something up to charge each cell in the pack using the C9000.

You can't charge it as a battery pack.

Tom

Thanks SilverFox. Love the second signiture. That's what happened. :laughing: :mecry:

Oh BTW what aabout the Maha 777 something pack charger? Can that be used to charge ni cad/mh drill packs? What about li-ion/po?

 

[SilverFox]

Hello Zero Enigma,

The Maha 777 is dated and may have some issues with Li-Ion charging, but it will do packs to some extent.

I think you would be better off looking at some of the hobby chargers that also run on AC.

Tom

 

[bob_ninja]

I took apart a pack using C size NiMH cells for a robot. It is similar to power tools, high current draw, etc.
I used BC-900 and a C holder with connections to a single bay to analyze each cell. Of course this was after the pack performance dropped below 50% of original run-time.

I found that about half the cells were below 50% of their rated capacity (so total junk) and only few cells were at about 80% (somewhat usable). Clearly there was nothing to be recycled from the old pack as most of the cells were very tired.

I even purchased a higher capacity pack from ebay, but found it do degrade very fast.

The point is that building a pack is *VERY HARD*. Cells need to be robust to begin with and need to be well balanced. So there is a high risk when going anything but OEM.

In summary, not much point in using C9000 or BC-900 to analyze or recover old cells.

Good luck.