New DPI Boiling Off Water

[oldnavycdr]

Originally Posted by JohnnieB

Yeah, the spout has to be vertical or it overfills a bit.
For the hard to reach ones, try something like this: https://www.amazon.com/Plews-75-033-...battery+filler

Great idea, Johnnie! Should handle the back battery nicely.

[harriswallace]

Originally Posted by JohnnieB

That was a jump from the highest absorption voltage to the lowest, maybe one of the two in between might be better.

According to US Battery's brochure (attached) for the US 8VHATB XC2 battery you have, the absorption voltage should be 2.45V +/- 0.05V (Volts per Cell) which gives a range from 2.40V to 2.50V. The absorption voltage in Mode-2 (Trojan battery) is 2.35V.

Mode-3 is 2.40V, Mode-4 is 2.45V and Mode-1 is 2.50V. (Or at least that is what I got from DPI a couple of years ago, before they change the name of Mode-4 from Full River to Crown/AGM.)

The float charge voltage is different in the different modes also, but as long is it is from about 0.2V to 0.6V higher than the at rest voltage, it ought to be okay.

What are you getting for an at-rest voltage (12 hours after the charger is disconnected from cart without the cart being used)

According to the info I got from US Battery, the at-rest voltage of their 2V cells is 2.137V, which is 76.932V for a 72V pack.

Full pack after 12hr 77.5 all the batteries are either 8.6 or 8.7 batteries are about 9 months old

[cgtech]

I hate those jugs, they overfill every single cell to a consistent over full level in my experience with them. I have never used the red "turkey baster" to fill batteries, only to clear out "filled to the top" cells. For my own, I have used my own creation from a Gatorade bottle with a aerosol can straw stuck in the lid for tricky battery filling and removal. It's slow, but accurate. And the straw is so small, it doesn't dribble juice anywhere.

[JohnnieB]

Originally Posted by harriswallace

Full pack after 12hr 77.5 all the batteries are either 8.6 or 8.7 batteries are about 9 months old

That looks okay to me.

[JohnnieB]

Originally Posted by cgtech

I hate those jugs, they overfill every single cell to a consistent over full level in my experience with them. I have never used the red "turkey baster" to fill batteries, only to clear out "filled to the top" cells. For my own, I have used my own creation from a Gatorade bottle with a aerosol can straw stuck in the lid for tricky battery filling and removal. It's slow, but accurate. And the straw is so small, it doesn't dribble juice anywhere.

If you don't want the batteries to fill as high, install some shrink tubing to the spout.

I listen to the sound it makes and stop filling when the gurgling stops. If you leave it longer, you will sometimes hear some quiet bubbling and it might overfill.

I've only used it with the Exide batteries if have. Not sure how it works with other brands.

[slashpine]

FWIW...In the past I have used a turkey baster but these days I use a diner style ketchup bottle...find them in the grocery store for a couple dollars

[cgtech]

Heatshrink on the end, huh? Good idea!

[oldnavycdr]

I may give this a try: https://www.amazon.com/Plastic-Liqui...ottles+plastic

[cgtech]

I would totally try one of those.

[HiTechRedNeck]

RXV w/4 12v batts????

Look into tray and convert to 6/8v batts we do this on almost every RXV now BIG IMPROVEMENT !!!!