Battery box wiring.

[Kmai]

I have purchased a battery box, 120ah lithium battery, dc-dc charger and a wiring kit (from dc charger output to battery box). Will need to supply my own cable from starter battery to input side of dc charger.

The dc-dc charger kit comes provided with 20cm cable with crimped connectors.
The provided cable is 10AWG.
The recommended cable size is 6AWG with a 60amp circuit breaker.

Is it safe to use 10AWG from starter battery to input side. It comes provided with a 10AWG cable.

Could I run 6AWG from start battery to the provided 10AWG cable then this will be inserted into the dc charger.


Thanks

 

[Triton14]

Is it safe to use 10AWG from starter battery to input side. It comes provided with a 10AWG cable.

10AWG/B&S is not enough imo.

How far is the cable run as that will also determine voltage drop??

6AWG would be minimum & if the cable run is longer than 3 metres I would be inclined to go up again.

 

[boobook]

10AWG/B&S is not enough imo.

How far is the cable run as that will also determine voltage drop??

6AWG would be minimum & if the cable run is longer than 3 metres I would be inclined to go up again.

Wot he sed.^^^^

If they supplied 10AWG cable, i'd question the quality in general. That is rediculas. There is another recent thread where the voltage drop was too high. It will not work properly.

 

[Kmai]

10AWG/B&S is not enough imo.

How far is the cable run as that will also determine voltage drop??

6AWG would be minimum & if the cable run is longer than 3 metres I would be inclined to go up again.

I have purchased a battery box, 120ah lithium battery, dc-dc charger and a wiring kit (from dc charger output to battery box). Will need to supply my own cable from starter battery to input side of dc charger.

The dc-dc charger kit comes provided with 20cm cable with crimped connectors.
The provided cable is 10AWG.
The recommended cable size is 6AWG with a 60amp circuit breaker.

Is it safe to use 10AWG from starter battery to input side. It comes provided with a 10AWG cable.

Could I run 6AWG from start battery to the provided 10AWG cable then this will be inserted into the dc charger.


Thanks

10AWG/B&S is not enough imo.

How far is the cable run as that will also determine voltage drop??

6AWG would be minimum & if the cable run is longer than 3 metres I would be inclined to go up again.

Could I run 6AWG from start battery to dc charger then reduce it to 10AWG.
The 10AWG provided is 10inch in
length with a ring terminal crimped on.
there is no way a 6AWG with or without terminal would fit.

 

[Lost1?]

I have run 4awg double insulated cable, wrapped in split conduit from the crank battery to the tub in my Triton. About 4 metres of power cable. I have a circuit breaker mounted on a bracket against the firewall. The peak power draw for my dcdc charger is 30 Amps, for short periods. The cable I installed could handle 40 Amps.

Running a power cable near or above capacity for a period of time generates heat. Should you burn through the insulation the cable will arc out on the body or chassis, melting steel and heating up anything in close proximity to the area. This is a fire risk.

The next touring vehicle to catch fire due to poor electrical work, and a lot of battery power won't be the first. My thoughts are spend $50 at jaycar to buy the bits required to do the job safely/properly.

 

[Triton14]

there is no way a 6AWG with or without terminal would fit.

Try 8awg, thats what I used for my connection from MPPT to set up.

I always like to slightly "overbuild" when talking 12V

At least then you cover 2 things, 1. less voltage drop 2. you have less chance of burning the vehicle down.

Also just saying not all cables are the same, the same diameter cables from different manufacturers will have different amp ratings.

 

[Albynsw]

Have a look on ebay, there are reputable sellers sellingTycab cabling at reasonable prices usually at much better prices than in a local store