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Removing battery from ryobi rlm3640l

Can't remove battery to recharge

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Ryobi 12 V 10: 150r trimmer edger - How to remove battery

Easy!

Just remove the screws from the housing (I had to do it this morning). There are approximately 12 screws that can removed with a flat head screw driver, all from the same side of the housing. The housing readily opens up, but be carefull, there will be some rubber strips that start to fall out. Make sure you keep these; you will need them again for the replacement battery you install. The rubber strips act as a cushion between the battery and the housing's inner ribbing; helps to reduce rattle & vibration.

Next pull the 2 electrical leads (red and black) down and off of the battery terminals, a quick **** will work well.

Lastly, your battery is 12V 8.0Ah and retails for $100 plus shipping. Mine lasted 11.5 years, but finally died (I think). You might however, want to have your battery tested to see if it really is bad, it may be a bad charger which is only $10 - $20 to replace.


Posted on Jun 24, 2009

  • 183 Answers

SOURCE: Do Ryobi rechargable batteries fit other brand rechargers?

they dont fit at all

Posted on Jul 29, 2010

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1 Answer

Is there a method to bring power tool batteries back to life?


Yes! Rechargeable batteries can be rejuvenated by draining them fully and then recharging fully and then repeating a few times! The trick is to fully drain and fully charge!

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Ryobi batteries P103 (2) or P104


The physical differences between two models of Ryobi batteries is:
- The P103 (Part Number 130429008) is a 1.5 Amp/Hour (a measure of how long a battery lasts on a charge) battery. If totally discharged it takes about 15-20 minutes to charge back to full. It is lighter than the P104 because it has half the cells inside. Lighter, quicker to recharge, quicker to discharge, shorter lifespan.
- The P104 (Part Number 130429017) is a 3.0 Amp/Hour battery. It takes about 30-35 minutes to charge it to full if fully discharged. Slightly heavier, longer time to discharge & recharge, longer lifespan.
Considerations:
- No difference between batteries in the performance of your tools.
- The number of times you discharge and recharge a battery determines a batteries lifespan. That's why most manuals will tell you to fully discharge a battery before putting it on a charger.
- If you only have one battery you cannot use your tools while it is recharging. On big projects you have to have two batteries.
- The weight difference between batteries is negligable unless you are working with the tool in your hand for extended periods.

Mar 04, 2012 | Ryobi Two 18V Lithium-Ion Batteries +...

1 Answer

Included in my Ryobi printed instructions are the statements: 1-"Green LED on indicates battery pack is fully charged and charger is in maintenance charge mode. 2-"To obtain the longest...


Any battery left in a charger is still hooked up to a circuit. Depending on the charger this can mean a slow discharge is possible. Ryobi's Maintenance Charge Mode means the charger will 'refresh' the battery at regular intervals, usually every 30 days. A battery's lifespan is determined by how many times it is discharged/recharged so to get 'the longest possible battery life' it is desirable to reduce the number of times a battery is recharged. One way is to use the battery until it is dead or near so another is to remove the battery from the charger when it's fully charged to reduce the number of times the charger refreshes the battery.

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I get a green and yellow light on the Ryobi 18v charger and the batteries don't recharge. Does this mean the charger is now bad? Thanks for any help. Dan


This usually indicates that one or more of the rechargeable C batteries is not recharging. The batteries are standard rechargeable C batteries but the terminals are spot welded and are very hard to separate. There are 15 rechargeable C batteries in the Ryobi 18v battery pack. A battery tester will show which battery(s) needs replacing. There are refurbishing centers (Google search) but they will replace all the batteries and usually upgrade the OEM 1500 mah batteries with 2100 mah, or higher, batteries.

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2 Answers

Does it harm a Ryobi 18v lithium battery to leave on Charger?


Lithium-Ion batteries require careful charging and temperature monitoring while in the charger. Ryobi's Charging station monitors many functions and shuts off when the battery has gone through a complete charge. This is indicated by a steady Green light. Once the Charge indicator is a steady green the charger stops charging. With any battery It will slowly discharge and I don’t think the Ryobi will maintain a battery that is never removed. For example, if after a complete charge cycle if the battery was left there for 2 years and then you went to use it, it would likely be completely discharged. However if the battery charger is unplugged then plugged back in a new charge sequence would start. I lose power at my house about every 6 months or so. Once power is restored a new cycle would start and the charging cycle begins again.
Hope this helps and have a great day.

Apr 01, 2010 | Ryobi Two 18V Lithium-Ion Batteries +...

1 Answer

HOW TO REPAIR YOUR RYOBI RECHARGABLE DRILL BATTERY


ryobi is the most inexpensive cordless brand, and they assume you will throw it out after it stops working so there is no repair support. sorry.

Sep 02, 2009 | Ryobi Multi-Volt Battery Charger

1 Answer

Lithium batteries?


Just got a reply from Ryobi tech service and it says that "all Ryobi 18V platform power tools can accept and use the lithium batterys, but you must use the charger for the lithium to recharge them. Hope this helps. Dave

Feb 11, 2009 | Ryobi Multi-Volt Battery Charger

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My 18 V ryobi chain saw doesn't activate


Batteries need to be stored fully charged and recharged every month or so while in storage. Batteries need to be kept cool. Try another battery to see if the battery is bad or if the saw is out of order. Contact Ryobi @ 800 -525-2579 The full extent of your message did not appear on my screen. So I am not sure this helped you.

Jan 22, 2009 | Ryobi 18-inch Electric Chainsaw Chain Saws

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Ryobi 18 volt batteries wont hold a charge


Ryobi batteries are specific to each Ryobi model, so please write down which model number or the original battery part number you have. How old are the batteries?
I had the same problem with many bateries I had at home, like cell-phone batteries and also some power tool bateries. Did not have any Ryobi power tools tho, so don't hold me acountable if this doesn't apply to your hardware:)
Many batteries have the "memory effect" which means that if the battery was not completely empty when it was set to recharge it might now only recharge to the level it was emptied to, so for instance if you used the power tool for 10 mins and the battery emptied to, lets say, 90% capacity, it might occure that the next time you recharge the battery it will only charge to it's 90% maximum...doing that many times lowers the maximum recharge capacity. As I heard the new Li-Ion batteries do not have this problem.
I hope this makes some sence as my english is not that good and it was a bit hard explaining my thoughts:)

Nov 25, 2008 | Hand Tools

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