Does DEKA make a good UPS battery?
I took a trip yesterday down near San Diego, it was twofold. One was to replace my free Trojan T-1275 that was a golf cart reject already when I got it with a pig of a 105# UPS 145ah AGM battery from ...
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Jim, These watt meters come with 12 awg aluminum leads which are super flexible and have very high temperature rated insulation. I'd not trust them for passing much more than 25 amps for very long. The 130 amps ratings are momentary ratings.
I have removed these 12awg leads and soldered on 8awg, and use 45 amp anderson powerpoles on them.
I have one hardwired onto my Meanwell with the powerpoles, and use another one just to hook inline on anything I desire that i have powerpoles hooked to.
Even with the 8awg and 45 amp powerpoles, the wires get warm passing 40 amps for an hour, but the 12 awg wires got super hot and the voltage readings were way off throwing off the amps and watts too.
On a recent project for a Friend, I ordered this Specific Watt meter, and put 8awg right to the circuit board's Shunt.
I was very surprised when it was able to measure a 0.06amp load accurately. My other 2 meters are blind to such small currents and become inaccurate under 0.8 amps. Over 8 amps they are pretty close with my Shunted battery monitor and clamp on Ammeter.
For under 20$ they are awesome, but they are not perfectly accurate, and they have a couple if ands or butts too, like counting only to 65 amp hours before flipping back to zero.
They also only count current flowing in one direction, but Still, it is a wonderful tool and with 8awg and anderson powerpoles, are very functional and impressive for their price.
http://www.amazon.com/gp/product/B00LNSBLO2/ref=pd_lpo_sbs_dp_ss_2/186-1489850-9586752?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=lpo-top-stripe-1&pf_rd_r=1B2KXEAAG0G95J39HA27&pf_rd_t=201&pf_rd_p=1944687582&pf_rd_i=B00C1BZSYO
There are about 10 different versions of this meter sold under slightly different names. The one linked above was the one which was able to read 0.07amp loads, though I can't say all of them will perform similarly.
Soldering on the 8awg is not too hard, but I did manage to fry one of them by using too much solder and bridging + and -. The casing needs to be modified to retain the 8awg. I got two of the 4 screws back in to hold it closed, and use small zip ties very tight, and some 'Amazing Goop' to act as strain relief.
Here are a couple pics of my original GTpower meter's internals
Above, it still has the 12awg aluminum leads with 30 amp powerpoles.
There are two circuit boards, you can see the small shunt on the (-):
One can pry open the circuit boards slowly about 1 CM for a little more access to the (-)
Here is the other side, and the part which will bend allowing access to the Shunt for soldering.
Here is the Tinned marine 8awg soldered on:
Here it is measuring the Output of my Meanwell RSP-500-15.
I have removed these 12awg leads and soldered on 8awg, and use 45 amp anderson powerpoles on them.
I have one hardwired onto my Meanwell with the powerpoles, and use another one just to hook inline on anything I desire that i have powerpoles hooked to.
Even with the 8awg and 45 amp powerpoles, the wires get warm passing 40 amps for an hour, but the 12 awg wires got super hot and the voltage readings were way off throwing off the amps and watts too.
On a recent project for a Friend, I ordered this Specific Watt meter, and put 8awg right to the circuit board's Shunt.
I was very surprised when it was able to measure a 0.06amp load accurately. My other 2 meters are blind to such small currents and become inaccurate under 0.8 amps. Over 8 amps they are pretty close with my Shunted battery monitor and clamp on Ammeter.
For under 20$ they are awesome, but they are not perfectly accurate, and they have a couple if ands or butts too, like counting only to 65 amp hours before flipping back to zero.
They also only count current flowing in one direction, but Still, it is a wonderful tool and with 8awg and anderson powerpoles, are very functional and impressive for their price.
http://www.amazon.com/gp/product/B00LNSBLO2/ref=pd_lpo_sbs_dp_ss_2/186-1489850-9586752?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=lpo-top-stripe-1&pf_rd_r=1B2KXEAAG0G95J39HA27&pf_rd_t=201&pf_rd_p=1944687582&pf_rd_i=B00C1BZSYO
There are about 10 different versions of this meter sold under slightly different names. The one linked above was the one which was able to read 0.07amp loads, though I can't say all of them will perform similarly.
Soldering on the 8awg is not too hard, but I did manage to fry one of them by using too much solder and bridging + and -. The casing needs to be modified to retain the 8awg. I got two of the 4 screws back in to hold it closed, and use small zip ties very tight, and some 'Amazing Goop' to act as strain relief.
Here are a couple pics of my original GTpower meter's internals
Above, it still has the 12awg aluminum leads with 30 amp powerpoles.
There are two circuit boards, you can see the small shunt on the (-):
One can pry open the circuit boards slowly about 1 CM for a little more access to the (-)
Here is the other side, and the part which will bend allowing access to the Shunt for soldering.
Here is the Tinned marine 8awg soldered on:
Here it is measuring the Output of my Meanwell RSP-500-15.
