Re: Batteriser claims to be able to extend disposable battery life by 800 percent

From	Sylvia Else <sylvia@not.at.this.address>
Newsgroups	aus.computers, aus.electronics
Subject	Re: Batteriser claims to be able to extend disposable battery life by 800 percent
Date	2015-06-05 11:40 +1000
Message-ID	<ctcd0rFgnlaU2@mid.individual.net> (permalink)
References	(2 earlier) <mkllnh$onj$1@dont-email.me> <ct79kgF79afU1@mid.individual.net> <ct7l8rF9s36U1@mid.individual.net> <ct9ql0Fr49nU1@mid.individual.net> <ctareoF4cnhU1@mid.individual.net>

Cross-posted to 2 groups.

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On 4/06/2015 9:34 PM, BuckyBalls wrote:
> On 4/06/2015 4:14 AM, Sylvia Else wrote:
>> On 3/06/2015 4:30 PM, Rod Speed wrote:
>>>
>>>
>>> "Sylvia Else" <sylvia@not.at.this.address> wrote in message
>>> news:ct79kgF79afU1@mid.individual.net...
>>>> On 3/06/2015 11:38 AM, Damian wrote:
>>>>> "Sylvia Else" <sylvia@not.at.this.address> wrote in message
>>>>> news:ct4tn7Fj4asU1@mid.individual.net...
>>>>>> On 2/06/2015 1:47 PM, felix_unger wrote:
>>>>>>>
>>>>>>> http://www.pcworld.com/article/2928997/batteriser-is-a-250-gadget-that-extends-disposable-battery-life-by-800-percent.html
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> I think the claims need to be, if not taken with a pinch of salt, at
>>>>>> least
>>>>>> understood for exactly what they are.
>>>>>>
>>>>>> The patent
>>>>>>
>>>>>> <https://www.google.com.au/patents/US20120121943?dq=20120121943+A1&hl=en&sa=X&ei=3TxtVf2zNYWO8QXdwYKgDw&ved=0CBwQ6AEwAA>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> states
>>>>>>
>>>>>> "Some electronic equipments that use disposable batteries, such as AA
>>>>>> batteries, are designed to stop operating when the battery voltage
>>>>>> drops
>>>>>> by 10% or so. That means when the voltage of an AA battery drops to
>>>>>> about
>>>>>> 1.4V or 1.35V."
>>>>>>
>>>>>> Now, that may be true, but if the voltage curves shown in figure 7
>>>>>> of the
>>>>>> patent are correct, equipment that bails at 1.35 is clearly being
>>>>>> exceedingly wasteful. Note that the claims is only that "some" do.
>>>>>> Not
>>>>>> that the majority do, nor that most do.
>>>>>>
>>>>>> By comparison, equipment that's happy to run until the voltage drops
>>>>>> to 1V
>>>>>> will have removed most of the available energy from the battery.
>>>>>> Further,
>>>>>> if, as is possible, such equipment contains a linear regulator to
>>>>>> provide
>>>>>> a constant internal voltage, then adding the Batteriser to provide a
>>>>>> constant 1.5V input will just run the battery down faster as the
>>>>>> regulator
>>>>>> dissipates more energy as heat.
>>>>>
>>>>> That if the majority of the equipment comes with an internal step up
>>>>> voltage
>>>>> regulator circuittry.
>>>>> Hardly any consumer electronic device come with that afaik.
>>>>> Many that comes with such circuitry are commercial and scientific
>>>>> equipment.
>>>>
>>>> It's not a question of having step up circuitry. It's just a matter of
>>>> what voltage the device requires to operate. If it can operate on 1V
>>>> per cell then there's no need to provide extra circuity to pump the
>>>> voltage back to 1.5V per cell. Doing so not only wastes energy in the
>>>> pump circuitry due to its lack of 100% efficiency,
>>>
>>> Yes.
>>>
>>> but also wastes energy in
>>>> the 0.5V drop from what's supplied to the device to what it needs.
>>>
>>> Nope. They don’t normally regulate it down to that 1V that is all they
>>> need.
>>>
>>> It just works fine with everything from 1.5V down to 1V.
>>
>> Think about the physics of it, Rod. If it can work on 1V, then any
>> higher voltage wastes energy, unless the device contrives to draw a
>> lower current at the higher voltage (which typically implies some kind
>> of non-linear regulator).
>>
>> Sylvia.
>
> Boost converters are LEAST efficient at lower input voltages. As the
> voltage increases they get more efficient. Basic switch-mode stuff.
>
>
If the device uses a boost converter to provide the majority of the 
power to the rest of the circuit, then that is true. Most battery 
powered devices just require a suitable input voltage, and do not use a 
boost converter.

Sylvia.

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Thread

Re: Batteriser claims to be able to extend disposable battery life by   800 percent "Damian" <damian_andrews75@yahoo.com.au> - 2015-06-03 11:38 +1000
  Re: Batteriser claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-03 16:30 +1000
    Re: Batteriser claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-04 12:14 +1000
      Re: Batteriser claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-04 21:16 +1000
        Re: Batteriser claims to be able to extend disposable battery life by   800 percent BuckyBalls <"The Pres"@yahoo.com> - 2015-06-04 13:37 +0200
        Re: Batteriser claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 11:38 +1000
          Re: Batteriser claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 12:23 +1000
            Re: Batteriser claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 15:19 +1000
              Re: Batteriser claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 15:42 +1000
                Re: Batteriser claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 15:54 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 19:08 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 21:52 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 22:45 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 22:57 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 23:11 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-06 13:02 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-06 13:50 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-06 19:51 +1000
                Re: Batteries claims to be able to extend disposable battery life by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-06 19:59 +1000
      Re: Batteriser claims to be able to extend disposable battery life   by   800 percent BuckyBalls <"The Pres"@yahoo.com> - 2015-06-04 13:34 +0200
        Re: Batteriser claims to be able to extend disposable battery life     by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 11:40 +1000
          Re: Batteriser claims to be able to extend disposable battery life     by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 12:25 +1000
            Re: Batteries claims to be able to extend disposable battery life     by   800 percent "Rod Speed" <rod.speed.aaa@gmail.com> - 2015-06-05 14:54 +1000
          Re: Batteriser claims to be able to extend disposable battery life       by   800 percent BuckyBalls <"The Pres"@yahoo.com> - 2015-06-05 12:54 +0200
            Re: Batteriser claims to be able to extend disposable battery life         by   800 percent Sylvia Else <sylvia@not.at.this.address> - 2015-06-05 23:03 +1000
              Re: Batteriser claims to be able to extend disposable battery life           by   800 percent BuckyBalls <"The Pres"@yahoo.com> - 2015-06-05 16:47 +0200

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