A Systems lithium ion rechargeable ALM 12V7 battery is based on proven ANR cells. The battery offers high power, long cycle and calendar life, and . They deliver higher power, increased safety and exceptional calendar and cycle life compared with lead acid. The ALM 12V7 features integrated safety systems. The ALM 12V7s HP (up to 45 A continuous charge/discharge) is the next generation of NEC Energy Solutions pioneering Advanced Lithium Module, now with.

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Or do the test yourself. The current draw from the glove box light was likely tiny at the end of the discharge. But a series string of nicads can’t be run dead without a significant chance that one or more cells will get reversed, and short out.

NEC ALM 12V7 s-Series User Manual

I’ll check and see if the circuit is tweakable. Started the engine and quickly disconnected the jumper cables, allowing the full amps from the alternator into the LiFePO4 battery. There is darn close to zero remaining capacity below 2 volts OCV. Yeah, the archives are a pain to use.

Delivers twice the power of lead acid, even at high discharge rates, while maintaining high energy capacity Superior Safety: It is powered exclusively from the series string of cells it is monitoring.

They are guys doing uncontrolled experiments, with no documentation, and simply saying what seemed to happen by memory.

He assumes you’ll just buy more from him! Some use a microcomputer, or various digital or analog hardware circuitry. You’re more familiar with these than I am, Davide. In reply to this post by Bill Dube.


ALM 12V7 |

Best Regards, Mark www. I know A cylindrical cells are great! The item may be missing its original packaging, or the original packaging has been opened or is no longer sealed. Sign in for more lists. Start of add to list layer. Furthermore, the LTC can be powered from an isolated supply, providing a technique to reduce battery stack current draw to zero.

Learn more – opens in a new window or tab Postage: Please take those discussions elsewhere. I have to get the pack fairly soon after it was taken out of service, so at least some cells are still good.

ASystems has done extensive testing as well. Indeed, it’s the only thing that ever has! In reply to this post by Bill Dube Bill Dube wrote: Sell one like this. Troubleshooting Chapter 6 Troubleshooting The other 4 cells the control group was left sitting with no load or charging after the discharge test. Since there is virtually no capacity left below 2 volts at any “sane” discharge rate is as good a place as any to switch off the output.

I want to know why a new battery arrived dead. Modular design enables deployment of up to four ALM batteries in series and up to 10 in parallel without requiring additional electronics, helping to reduce system complexity and increase durability. For example, individual nicad cells 1v7 being run down to 0 volts.

For charge acceptance, do not exceed the limits specified. Look in the EVDL archives. Bill Original Message From: However, A M1 cells are different and have been shown to not only 122v7 being discharged to lam, but actually have a lower internal resistance afterward. Tiny reverse voltage makes tiny damage. Warm alternator wire is a sure indication of aln current flow. Others have done it. I can imagine a single xlm not being harmed by 0 volts; a few other types of cells can survive this.


Very little increase in internal resistance over the bulk of the discharge. What tests did you do, what was the data, and what were your conclusions? The typical BMS in a well-designed commercial product has very low continuos operating currents. No accessories on other than the engine. That’s fact; confirmed by the data.

That’s an important question, which we don’t have the answer to. Mencken — Lee A.

Until then, it flies in the face of my experience with other lithium cells including LiFePO4. Enter text from picture: New other see details. See all condition definitions – opens in a new window or tab In reply to this post by Bill Dube Bill would you advocate a bottom balance with by drawing each cell individually down to 0 Volts?

The pack was delivered dead.

Thus, the cells will read over 3 volts for years. Seller assumes all responsibility for this listing. Five years and 60, miles 122v7, that 12v LiFePO4 battery still working perfectly.