How To Install A Battery To My Pop Up Trailer

panel meter

circuit

battery tester

Description:

battery tester to check of all batteries in the voltage range of 4-18 volts.
They are about 4-12 cells NiCd batteries.
The cell count can be adjusted with a dist.

difficulty	Beginners
group	measuring circuit
function:	voltage display with 10 LEDs tuned to NiCd batteries.
size:	board 42 x 35 mm
Power:	From the measured battery

Additional info:
E s are recently batteries with 1.5 volts, which are, for example. by the company "Accu Cell", the batteries are the properties of a normal dry cell battery, that is:
- Long cargo receipt (low self-discharge)
- 1.5 volt cell voltage
- large capacity (as with NiMH batteries)
- no memory effect (because special Ladgerät required) is

The disadvantage of the relatively high internal resistance that they are not for "power hungry" usable power, as in model, so there are nickel cadmium batteries are still indispensable.

Schematic / Reproduction:

2x IC1 1x LED bar display LM3914 LED1 1x 10x LED HB420 od.10 individual R1 1x resistance 4.7 K R2 1x metal film resistor 470R R3 1x metal film resistor 12K R4 1x Metal Film Widerstand 51K P1 1x Potentiometer stehend 50K C1, 2 Elko 10μF C3 1x Search 100nF (IC1) 1x IC-Fassung 18-Pol. (UV) 1X screw 2-pole.

D he circuit is reconstructed on the basis of the plan, while there should be no major problems. The easiest way is to build on the board shown below, you can easily etch themselves.
The comparison is made with the dist, and is very simple. Take your best battery and charge it fully, then shut off the circuit to the battery and place the pot so that the last light emitting diode (right) so just lights.
Then each cell has about 1.35 volts.

For advanced:

ZIP file containing all the necessary plans for the reconstruction

click with right mouse button and
"Save As".