[RE-wrenches] Lithium Ion tool batteries
Maverick Brown
maverick at mavericksolar.com
Thu Jan 20 23:11:41 EST 2022
I love the Milwaukee CP 3.0 HO batteries. A great combo of size vs power/energy and they use the larger 21700 battery.
Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
• Solar Commander Remote Power
• SunFlow Systems Cathodic Protection
maverick at mavericksolar.com
512-460-9825
> On Jan 20, 2022, at 8:43 PM, Jay <jay.peltz at gmail.com> wrote:
>
>
> Most all the companies use the same Samsung batteries.
>
> Here is a video about someone checking that out.
>
> https://m.youtube.com/watch?v=Plhxnrba2D8
>
> Jay
>
>
>>> On Jan 20, 2022, at 1:03 PM, Ray <ray at solarray.com> wrote:
>>>
>> I've had great luck with the Milwaukee M18; I almost never bring in my tool batteries anymore, unless its going to be below 0. Love the cordless shop vac.
>>
>> I also use Ryobi, for my less used tools (ie.circular saw) and they have excellent performance for the money. Not quite as temperature forgiving though.
>>
>> As for Milwaukee chucks jamming up; I only had that happen once after a bunch of hammer drilling in Haiti. Scrounged all over the village for the special star keys to take apart the chuck, but it just needed to be cleaned.
>>
>> Ray Walters
>> Remote Solar
>> 303 505-8760
>>
>>> On 1/20/22 10:24 AM, Dana Orzel wrote:
>>> Really Happy with the Milwaukee M18 volt series. Various sized batteries available, & there have to be 150+ tools in the M18 series. I got into the Milwaukee 28 volt originally & what a nightmare; too heavy, replacement batteries were $$$ & life span on the battery was not good.
>>>
>>> I have been told the Milwaukee power tools have steel gears not plastic. The impacts are bomber solid.
>>>
>>> So far cold weather operation is good, no noticeable deficiencies. & I have charged them very cold so the battery charger BM is fairly smart/sensitive. I have noticed if really cold the charger says "broken Battery"
>>>
>>> I Loved the small cooler & reptile heater idea! Great idea!
>>>
>>>
>>>
>>> Dana Orzel Great Solar Works, Inc.
>>> C - 208.721.7003 dana at solarwork.com
>>> Idaho Contractor - # 028765 Idaho PV # 028374
>>> NABCEP # 051112-136 www.greatsolarworks.com
>>> "Responsible Technologies for Responsible People since 1988"
>>> Please consider the environment before printing this email.
>>>
>>>
>>> -----Original Message-----
>>> From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of drake.chamberlin at redwoodalliance.org
>>> Sent: Thursday, January 20, 2022 9:32 AM
>>> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
>>> Subject: Re: [RE-wrenches] Lithium Ion tool batteries
>>>
>>> What lithium battery powered tool brand that has the best performance in freezing weather? My 10 year old+ Makita tool set isn't nearly as powerful as some newer tools. Even with new batteries, the tools have sufficient power in cold weather.
>>>
>>> What is the best brand for cold weather operation?
>>>
>>> Thanks,
>>>
>>> Drake
>>>
>>> Drake Chamberlin
>>> Athens Electric LLC
>>> Ohio Electrical Contractor’s License 44810 CO Master Electrician’s License 4526 NABCEP Certified PV Installation Professional
>>>
>>> ---
>>>
>>>
>>>> On 2022-01-19 11:58, Alex MeVay wrote:
>>>> Generally, storage or use at cold temperatures shouldn't be an issue,
>>>> as long as the battery can still deliver enough power to operate the
>>>> tool effectively.
>>>>
>>>> Charging though...at cold temperatures, ion mobility goes down. If
>>>> the battery is charged too fast, the lithium ions can't make it into
>>>> the graphite anode fast enough and they start to plate out as metallic
>>>> lithium. At best, this results in a permanent reduction in capacity.
>>>> Next worst from there, the lithium metal can create an internal soft
>>>> short, immediately or at a later point in time, resulting in high
>>>> self-discharge or a dead cell. Worst case, it turns into a hard short
>>>> and a fire.
>>>>
>>>> In theory, the BMS or charger should prevent charging too fast or too
>>>> cold, but who knows if an edge-case like this is actually implemented
>>>> correctly on any particular battery system. Be careful charging!
>>>>
>>>> Alex MeVay
>>>>
>>>> Genasun * Blue Sky Energy * http://sunforgellc.com
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