Need 4.5 Volt 4 Amp Power Supply, Cheap

[pinball2k]

Re: Need 4.5 Volt 4 Amp Power Supply, Cheap

FYI

The batteries lasted 8 days. Not terrible because I got two sets and two chargers for the price. So I charge up the other pair while one pair takes a week to discharge.

I am waiting for my regulator boards to see if I can get the receiver working without the batteries.

[budm]

Re: Need 4.5 Volt 4 Amp Power Supply, Cheap

Did you ever check the current draw? And how long does it run on 'C' cells?

[pinball2k]

Re: Need 4.5 Volt 4 Amp Power Supply, Cheap

The fully charged set of batteries lasted a full 14 days, I refreshed them on Friday Feb. 17.

[eccerr0r]

Re: Need 4.5 Volt 4 Amp Power Supply, Cheap

Gosh they already got to almost 10Ah on 18650's? I thought they freshly got the idea to relabel a 2Ah cell to 5Ah, and now 10Ah?

[redwire]

Re: Need 4.5 Volt 4 Amp Power Supply, Cheap

18650's seem to hover around 2,000-3,000mAh capacity, although the chinese are hyping up the numbers.
A 4-pack rated "9900mAh" is really 4 of 2,475mAh cells.
Amazon reviews for the 5,000mAh labelled cells say they get 1,200-2,200mAh.
It's the laws of physics.

I think OP got 14 days with 3.7V 9,900mAh pack, roughly a 30mA load.