I have a Sonicare toothbrush that died and I have cracked it open and am replacing the batteries in it. The originals were AA Ni-Cads but I would rather replace them with litiums. Will any lithium AA's do it or do I need specifically rechargeables? Anyone see any problem with replacing Ni_cads with litiums? Is it safe to assume the charging mechanism in the toothbrush or the batteries will regulate the charging? Thanks.
2006-06-20 03:00:44 · 7 answers · asked by CallMeDigitalBob 3 in Science & Mathematics ➔ Engineering
Yes.
Just make sure you have matched the voltage correctly.
At this low power, you'll probably be OK.
2006-06-20 03:08:29 · answer #1 · answered by manofadvntr 5 · 0⤊ 0⤋
No. Batteries are designed for a specific purpose. Carbon Zinc, Akaline and Litium one time use batteries are designed to produce engery through a one time chemical conversion.
Rechargable batteries are specifically designed for this purpose and as of this moment only CAMCORDER litium batteries are made for recharging. This may change in the near future and Litium batteries are becoming important!
The ONLY rechargable batteries are Ni Cad (Nickel Cadnium) and Ni MH (Nickel Metal Hydrate).
These allow a change of polarity or charge on part of the chemical element through a trickel charging device.
Charging standard batteries can cause an explosion! Never recharge a battery NOT designed and denoted as rechargable.
I foresee recharable Lithium within the next two years.
It will require new charging devices and new battery design.
Even then you will not be able to recharge disposable batteries of the Lithum class!
Ni Cads have "memory" and must be fully depleted before recharging and must recharge fully.
NI MH have no memory and can be partially recharged in specially designed NI MH chargers.
Some chargers are NI CAD and NI MH compatible, some are not.
Lithums have longer life, more power and recharge faster, but are only seen in camcorder designs!
2006-06-20 06:29:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I have read that there have been problems with lithium rechargable batteries where they can start fires. The batteries must be correctly recharged to be safe. The recharger likely provides the correct charge rate and voltage and detects when charging is complete. As with most products, if you "tamper" with them you assume complete responsibility for the consequences (if you lose your house?). One problem with lithium batteries is that crystaline dendrites (like tiny Christmas trees) can grow and cause shorts if not properly charged. Don't take a chance to save a couple bucks. Good luck.
BTW Altaire nano is using nanotech to improve lithium batteries but they will still need correct charging.
2006-06-20 04:38:22 · answer #3 · answered by Kes 7 · 0⤊ 0⤋
they artwork with the aid of fact the can charge switches from the two helpful to adverse or any opposite direction around while the beginning can charge is used to capacity the gadget. then you truly word them to an capacity source, often a wall outlet, and the can charge gets reversed to the unique state and that they are charged and able for use back with the aid of ionic bonding. duracell probable sells them, they seem to be a sturdy form. yet a great sort of rechargable home equipment use lithium-ion batteries. btw, what have been you asking right here?
2016-10-31 04:30:58 · answer #4 · answered by saturnio 4 · 0⤊ 0⤋
The worry you have is overcharging...This can happen because the different types of batteries use different charging algorithms.
I would recommend replacement with Ni-Cads. The extra cost of Li-Ion batteries and the danger of an overheat fire do not out weigh the small benefits.
2006-06-20 04:51:18 · answer #5 · answered by Charles W 1 · 0⤊ 0⤋
yes
2006-06-20 05:43:05 · answer #6 · answered by anirban 1 · 0⤊ 0⤋
i would just buy a new one
but maybe you could contact the company?
2006-06-20 04:19:06 · answer #7 · answered by um yea hi 4 · 0⤊ 0⤋