New - Bottom Balancer Rental : 19.90€ / week - Why buy and own one when you need it only once ?

After building my DIY ESS, I realized that my DIY Bottom Balancer was not being used anymore; Of course, Bottom Balancing of individual LiFePO4 cells has to be performed only once before connecting the cells into the desired voltage string for use - before the first charge actually -

Same thing, if you want to build an ESS, convert your Vectrix from NiMH to LiFePO4 - many do that themselves -, or any other LiFePO4 based project, you will need to go through this step - see why below -





You will do the Bottom Balancing of all your cells and then, never gain ... So why buy and own an expensive piece of equipment for nothing ?

That is why I decided to provide a new service: The Bottom Balancer Rental, for 19.90€ / week, excluding shipping period, so you have a full week of use of it, plenty of time to empty your cells, then return the device to me


Why is Bottom Balancing mandatory ?

Read : LiFePO4 Battery Charging Method - Don't Ruin your Expensive Cells !


Bottom Balancing the DIY ESS CALB CA180FI Cells

Bottom Balancer video



Does it work ?

Yes, I have used this device on 3 different LiFePO4 Battery packs, with 2 different cells brands



How do I use it ?

I will provide a PDF documentation by email to the persons renting it



Interested ?

Start renting my Bottom Balancer Now:

Options

1 Week - €19,90 EUR 2 Weeks (20% off) - €31,90 EUR 3 Weeks (30% off) - €41,90 EUR

NB: Shipping costs not included

NB: To prevent problems, I will charge an extra 100 EUR as a security deposit, refunded when the Bottom Balancer comes back to me

DIY ESS - Fan Grid arrived in the mail

From Ebay for 1€ I think, perfect finish and protect the warm air exhaust from the ESS Metal Cabinet

Very cheap grid, good quality, and fast shipping :-)

EVTV Friday Show - April 26, 2013

Big Show this week with almost 3 HOURS !!!

- 2003 Toyota Tacoma SRS Electric with 48 Thundersky TS200AH cells
- 2-meter cell booties arrive
- "Letter to the Editor"



News

Tesla New warranty on battery packs 

Chris Paine

2003 Toyota Tacoma SRS Electric with 48 Thundersky TS200AH cells

Battery lab check for some over-charged - and swollen - cells 

This week's special : Brusa Charger at a very good price

2M Cell Bootie 1st shipment arrives

NEW : "Letter to the Editor" 

Jack got cheap a great outdoor durable J1772 EVSE : 1,700 USD instead of 10,000USD !

LiFePO4 CALB CA180FI Cover

Well sunday I tought I need to have a more decent and practical cover for my CALB CA180FI cells; and for that I used the same Muji drawer object, but this time the drawer holder, popped off the top with a big screwdriver ...

... and there it is, almost perfect match to cover all the cells ! 

I will have to find something to make it sit there and not move, also I think I will drill small holes on top of each terminal bolt, to ba ebale to check cells voltage from time to time, even if they stay perfectly in balance all together after 3 weeks