Jumper cable amp rating

[confused shoes]

^

Sir, question lang. Pag ba sinabing dead battery as in zero(0) ang voltage reading nyan?

A battery (in our case a re-chargeable battery) is considered dead when it will no longer accept charge but its voltage is not necessarily zero.

[boytsiks]

^

Sir, question lang. Pag ba sinabing dead battery as in zero(0) ang voltage reading nyan?

AFAIK, dead batteries doesnt mean zero volts. It just means that battery is below specs (capacity). For example, 12Vdc yung battery pag 10 Vdc na lang ang sinsupply nya consider dead yan IMO. Unless icharge mo of course.

[12vdc]

^ Could be if shorted. In actual, usually lower than terminal voltage and not enough juice (current).

[miked]

ginagamit ko rin yung welding cables ko na 50 sq. mm sa jump starting. crimped connections with minimal soldering.

[Retz]

^

Kaya ko naman natanong yan sir, kasi kung meron pang 10v sa dead battery, hindi siya resistive load kasi source pa din yan.

[uls]

dead --- battery na di kaya mag start ng makina

dead can mean naubos lang ang karga pero di sira ang battery (like naiwan naka on ang ilaw or nag boom-boom sounds habang naka patay ang makina)

dead can also mean sira na talaga ang battery (di na tumatanggap ng karga or tumatanggap pa ng karga pero storage doesnt last)

[uls]

parallel -- positive sa positive negative sa negative

2 12v battery total out 12v parin

kahit sampung battery pa yan basta lahat ng positive magkasama lahal ng negative magkasama

--

series -- parang FLASHLIGHT!

positive to negative to positive to negative

2 12v battery total out 24v

kung 3 battery total out 36v and so on

[confused shoes]

^

Kaya ko naman natanong yan sir, kasi kung meron pang 10v sa dead battery, hindi siya resistive load kasi source pa din yan.

Tama sir, assuming you will use it to supply a circuit that is within it's capacity.
Consider a simple battery charger and a AAA low battery being charged. The charger is the source and the low battery being charged is the load.

[Retz]

Kung dead na talaga baterya as in 0v then it could be considered as resistive load hence, series ang circuit mo. But kung dead ang baterya pero may e.g. 10v pa then parallel ang connection mo kasi source pa din yan kahit depleted.

[uls]

^^

kung ang flashlight mo 3 D-battery tapos isa sa tatlong battery ay patay na iilaw parin ang bulb pero mahina

yan ang point mo