Valence batteries not lasting long at all
- Thread starter Russ
- Start date
Cliffman
New Member
- Joined
- Oct 30, 2019
- Messages
- 45
My test didn't work out good either and I was perplexed is to why until I found this chart. This is Battle Born's chart. As you can see your batteries MUST be at 13.6 to get 100% DOD. When I did my test of 62 amp continues discharge my batteries were at 13.13 per Valence Software. That's only about 50% SOC. Get the Valence software, make the cable and KNOW WHAT'S HAPPENING to your batteries and KNOW the exact voltage and SOC. Everything you need is right here. https://www.brewskynet.com/valence/. Charge them up to 13.8 THEN do your test. It took several hours to get all 4 of my batteries all hooked in parallel up to just 13.34. My Charger (Go Power IC-3000) started the float charge at 31 amps and over several hours dropped to 0 and per my Valence software my charge voltage is sitting at 13.34.
Attachments
Cliffman
New Member
- Joined
- Oct 30, 2019
- Messages
- 45
You don't need the esternal BMS to use the Valence software
Cliffman
New Member
- Joined
- Oct 30, 2019
- Messages
- 45
What is the max amps of the Battery Tender?
Cliffman
New Member
- Joined
- Oct 30, 2019
- Messages
- 45
Pretty sure that not enough for the XP's. Looks like it needs 70 amps for a bulk charge.
Attachments
Cliffman
New Member
- Joined
- Oct 30, 2019
- Messages
- 45
Yup but 4 amps is like a trickle charge for that size bat. I'm thinking it needs more but that's just my opinion.
Russ
New Member
- Joined
- Oct 1, 2019
- Messages
- 184
Came from California off Ebay
Russ
New Member
- Joined
- Oct 1, 2019
- Messages
- 184
These did come out of an EV I was told
It's really amazing what you can learn when you read the manufacturer website. The Valence XP Series all require an external BMS, if you can trust the word of the manufacturer. The RT Series has an internal BMS, and doesn't require an external one. Oh, and these batteries are used not just for medical applications, again as you can see from the information on their website. Look up lithiumwerks. Good luck.
Russ
New Member
- Joined
- Oct 1, 2019
- Messages
- 184
Sarcasm for me on reading the website???
I have the manuals even. I have learned so much on this site. VALENCE batteries were used only in medical equipment from what I saw or thought I saw here. Back in the fall I learned VALENCE was used in EV's as well as medical. Not interested in RT just XP.
I was under the impression the XP and RT both have BMS. So if you are saying the XP series does not have BMS I thought they did. Thanks for reading the website
The XP line has internal BMS hardware, but to be fully functional, it needs the external BMS. It can balance internal cells on its own. I think low voltage cutoff also works, but can't be sure on that since the inverter also cuts off around 10 v.
Russ
New Member
- Joined
- Oct 1, 2019
- Messages
- 184
Thanks . Good to hear from you
Similar threads
