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• Have you ever used a battery tender to prevent a battery from dying, for a car that you don't run too often?

  Asked by jca2 | 16 responses

• Will they be coming up with a tiny, and light, and removable battery, in cellphones?

  Asked by chefl | 14 responses

• (Don't do this at home) Is there an easy way to boil water using household batteries?

  Asked by capet | 7 responses

• Do modern spacesuits have heat and light?

  Asked by RedDeerGuy1 | 9 responses

• Did anyone else connect two nine volt batteries to stay warm in the winter?

  Asked by RedDeerGuy1 | 9 responses

• Can you recommend a small solar charger I can use indoors?

  Asked by JLeslie from iPhone | 3 responses

• Can you help me with my laptop battery troubles?

  Asked by JLeslie from iPhone | 6 responses

• How high a market value do you foresee for Tesla by 2025?

  Asked by crazyguy | 9 responses

• What will Musk reveal on Sep 22?

  Asked by crazyguy | 51 responses

• What steps to take before changing to new batteries if any?

  Asked by flo | 10 responses

• Is there an easy way to install a radio battery?

  Asked by chyna from iPhone | 13 responses

• When to use dry batteries, when to use wet batteries, and where do you find them?

  Asked by flo | 12 responses

• Does a device exist where one can use AAA batteries in AA slots?

  Asked by RedDeerGuy1 | 7 responses

• Can you recommend a good portable iPhone/iPad external charger?

  Asked by 2davidc8 | 5 responses

• Do batteries in a device go dead if you don't use them for a while?

  Asked by janbb | 12 responses

• What determines the size battery needed (or used) in a device such as a flashlight?

  Asked by rojo | 5 responses

• Why don't we swap out rechargable batteries for laptops, cell phones and electric cars ?

  Asked by RedDeerGuy1 | 28 responses

• Why is it important to not mix brands of batteries in a device (whatever kind of device)

  Asked by flo | 2 responses

• Why does rotating AAA remote control batteries help give an extra life?

  Asked by RedDeerGuy1 | 11 responses

• Can you recharge a mostly dead 9 volt battery by plugging a fresh one into the terminals?

  Asked by elbanditoroso | 9 responses

• How do I calculate how long a battery will power an LED?

  Asked by pallen123 | 5 responses

• AAA battery leaked all over my TV remote control. Poisonous or just nasty?

  Asked by elbanditoroso | 15 responses

• What is cooler a light saber or the most current Iphone?

  Asked by Ltryptophan | 14 responses

• Why are batteries modeled as ideal voltage sources?

  Asked by itsnotmyfault1 | 2 responses

• What is the cheapest rechargeable AA per ACTUAL Wh not claimed capacity.

  Asked by muhammajelly | 2 responses

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