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Old 02-21-2020, 11:43 PM   #51 (permalink)
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Quote:
Originally Posted by hayden55 View Post
The goal here is to have a battery pack that can be easily disassembled to be worked on. A lot of people complain about having a hard time servicing 18650 packs to find a dead cell when they are all welded together.
The SMD / SMT battery holders are your friend. Used in vaping. Contacts are leaf springs made of bronze. I'll be using them for the alternator delete build.

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Old 10-26-2020, 11:52 AM   #52 (permalink)
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An interesting new product at battery hookup:

LithiumPower 12.8v 32ah 410wh LifePo4 Module w/ BMS

Drop in replacement small battery for a car? Perhaps. I'm a bit leary of the 32A max charge and discharger, but I assume that is probably continuous because that is 1C. For starting I think it would be fine. Two in parallel would be more ideal though.

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Old 10-27-2020, 07:58 AM   #53 (permalink)
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I use a 20ah LiFePO4 to start my car. In the transitional seasons it starts just a hair slow, so I have a small cap pack (6x 400F) aiding it. My bet is that battery would do fine in my car without the caps.

I don't use lithium in winter, however.
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Old 10-28-2020, 03:27 AM   #54 (permalink)
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A small LFP battery can still work fine in the winter, the problem is you need to have a method of warming the battery so it can accept a charge. LFP is still more economical if you're willing to deal with a heater (a quick and dirty way to get it done is to have a heater pad that consumes enough power that an idle engine doesn't produce enough extra amps to charge the battery, and switch it on immediately after cranking).

I was talking to a manufacturer who can provide 40Ah LTO batteries (which can charge in the cold) in a plastic case with SAE terminals, but the cost is fairly high; The final cost if I were to resell them would be around $500. This would be a true no-compromise lead acid replacement that lasts forever, has ample reserve capacity, and has great cranking capacity. I've been thinking about starting a business selling these to luxury sports car owners, since they pay well over that amount for LFP batteries.

You can get a smaller LTO battery with no BMS for less money, and just run it with a balancing circuit. Used cells (which retain most of their performance since the LTO chemistry is more durable) should be able to get you around 20Ah for under 100 bucks total.
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Old 02-05-2021, 03:41 PM   #55 (permalink)
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Another update guys. Battery Hookup currently has brand new Honda Insight batteries available.

https://batteryhookup.com/search?q=insight

They have a lot of cool stuff right now. Worth looking into if you're in the market for any batteries.
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Old 02-05-2021, 03:49 PM   #56 (permalink)
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Was just looking at that site the other day, really impressed with the battery selection they keep bringing in.
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Old 02-05-2021, 05:51 PM   #57 (permalink)
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Man, this package right here:

https://batteryhookup.com/products/n...nsight-modules

Would make a nice drop in for us first gen owners... 176.4v high, 117.2v low. Looks to be already wired for a BMS and everything.

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