Lifetime of Tenergy ion-lithium battery - Page 2 - myLargescale.com > Community > Forums

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Old 04-06-2020, 09:54 PM   #11 (permalink)
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Dwight is correct, the life cycle of Lithium cells starts once the chemical matrix is combined. Batteries could be assembled years after the cells were first manufactured. Purchasing your batteries from a reputable battery assembler utilizing quality fresh inventory is paramount to happy life cycles.

FWIW: Some of the information of the Mechanics Illustrated article linked above is dated (2012) and or inaccurate IMO. As I often allude to there is a lot of misinformation out there with regard to Lithium batteries. If your interested in this type of information there are many sources with current and or accepted practices and realizations available online. The Battery University is one of many.

https://www.google.com/search?source...=1586224020071

Michael

Last edited by Michael Glavin; 04-07-2020 at 10:30 AM.
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Old 04-06-2020, 09:58 PM   #12 (permalink)
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Quote:
Originally Posted by Michael Glavin View Post
mymodeltrain<


If you’ll please provide data specific to your care, feedingand use of the failed Li-Ion batteries, collectively we maybe able to offer whatmay have led to the demise of your batteries.

Age: 2017

Voltage: 14.8

Capacity: ?

Charger model number and or specifications: ?

Charging frequency/interval: ? (can you estimate total charge/runcycles)

Typical run time(s): ?

Are your loco’s fitted with the same batteries?

Please call out the loco brand/model?

Please describe your typical operation, i.e., charge andrun trains until train stops, run trains with partially charged battery until theystop, stop train prior to depleting batteries???

Please describe how you care for the batteries after arun?

There is a lot of misinformation out there with regard tothe “proper use” and charging demands of said batteries.

Tenergy like all other battery technology resellers,purchases OEM cells and assembles and or packages them as battery packs for resale.Whose OEM cell is utilized is an unknown unless it called out in Tenergyspecifications. Accordingly, all Tenergy packs are not of like origin, quality,age and more. As an example, one 14.8V battery maybe comprised of Panasoniccells while others maybe use Sanyo, LG Chem or others. The quality and shelf lifeof the cells used to assemble a given run of batteries, together with the careand use of said batteries will dictate its life span.

Michael


Years of usage: ~3 years
Voltage: 14.8 V
Capacity: 2600 mAh
Charger: Tenergy Universal Smart Charger, 1.5 Amp for 14.8 V Lithium-ion batteries
Frequency of running time: 2 hours in the weekend during Fall/Winter; Spring: 4-6 h/week-end. So most of the time the locomotives just sit inside the garage. Sometimes, I run until the battery is dead, and would bring them back to the garage to plug the charger in. But most of the time, the locomotives have a half-full battery.
locomotive types: LGB or USA Trains.
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Old 04-06-2020, 11:29 PM   #13 (permalink)
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Okay, some quick observations:
The charger in play is appropriate for 14.8V, 2600mAh battery.

NEVER run the batteries down until the train stops!!!! Contrary to the miss-information that many abide by, this is detrimental to the batteries life cycle.

What specific loco's? The LGB's are likely fine, yet USAT engines are hungry and will pull more current than the LGB's.

Best practice is to store your batteries partially charged, at STORAGE voltage which is typically 3.8V per cell as I recall.

Charge your batteries often with the appropriate current, do not wait until they are fully discharged, this is the established standard. Minimal discharges are best with a toping charge between use(s).

I recommend reviewing the link I provided above for up to date accurate/proven/knowledge on all things battery.

Michael

Last edited by Michael Glavin; 04-07-2020 at 09:44 AM.
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Old 04-07-2020, 09:36 AM   #14 (permalink)
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Just to add, all of my receivers are the G Scale Graphics RailBoss 4. One of its features is a low battery warning and cutoff system for Lithium batteries. To my recollection I've only had it activate for one engine so I don't think I've ever fully drained any of my battery packs.
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Old 04-07-2020, 10:09 PM   #15 (permalink)
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Quote:
Originally Posted by Michael Glavin View Post
Okay, some quick observations:
The charger in play is appropriate for 14.8V, 2600mAh battery.

NEVER run the batteries down until the train stops!!!! Contrary to the miss-information that many abide by, this is detrimental to the batteries life cycle.

What specific loco's? The LGB's are likely fine, yet USAT engines are hungry and will pull more current than the LGB's.

Best practice is to store your batteries partially charged, at STORAGE voltage which is typically 3.8V per cell as I recall.

Charge your batteries often with the appropriate current, do not wait until they are fully discharged, this is the established standard. Minimal discharges are best with a toping charge between use(s).

I recommend reviewing the link I provided above for up to date accurate/proven/knowledge on all things battery.

Michael
Thanks, Michael for the experience, I will observe these steps in the future.
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Old 04-07-2020, 11:32 PM   #16 (permalink)
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I have quit buying the 14.8v Tenergy batteries. I have had several of them fail in what I PERSONALLY think was a short life span. All my new ones are the 6800mah from Airwire. Time will tell.
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Old 04-08-2020, 03:42 PM   #17 (permalink)
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Paul is not the first person to indicate that perhaps the Tenergy packs have changed in "lifespan", I've heard it from a number of our club members too.


I wish that packs came in clear shrink, so you could look inside and see the manufacturer of the batteries.



Greg
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Old 04-09-2020, 11:38 AM   #18 (permalink)
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https://www.batteryspace.com/

I have been happy with these folks for a long time. I started with their bike light /rechargeable flashlights for mine explorations, I could recharge in my truck away from home.
Then I used their NiMH tabbed batteries to make custom packs and then the Lithium packs after my others passed on....
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Old 07-03-2020, 07:37 AM   #19 (permalink)
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about 2 to 3 years
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Old 07-07-2020, 05:13 PM   #20 (permalink)
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"Average" for me is 5 years of reliable service. I've got some that have lasted much longer (10+ years) and others which have for whatever reason stopped working properly after two or three. I try to make the packs removable in my installations whenever practical, which cuts down on the number of batteries I need to buy.

Later,

K
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