Build Hybrid Battery Maintenance Gear For Under $100

Should be suitable for Gen 3, voltages are the same. Someone else may chime in.

Prolong Hybrid Automotive Battery Charger User Guide | Hybrid Automotive

 

Was wondering does this DIY kit turn off when fully charged?

 

Not that I'm aware of, but then neither does the Prolong.

 

so far here is BOM minus anmeter/voltmeter (still looking on ebay.. as Aliexpress ship might get stuck in harbor) , the fan power supply I will use ATX power supply i have lying around, and will look for the diode/resistor in my parts bin

 

Order from Digikey, Aliexpress, beware of knockoffs. EDIT: OK looks like a Digikey BOM

LPC-100-350 MEAN WELL USA Inc. | Power Supplies - External/Internal (Off-Board) | DigiKey

 

yes that BOM is all from Digikey ..im just trying to find the 500vdc digital meter in the US but no luck yet

 

Odd, even the freebie (no longer free) from HF does 1000V DC. Have you tried the big box stores/web (lowes, HD, etc), many start at $10.

Which metroplex in CA are you nearest, as the country and the state are both fairly large.

 

Yes I noticed one of the poster used 2 HF multimeters that they were giving out for free back in the days. I guess i can use my spare FLUKE meter and pickup meter from HF I'm Los Angeles county.

HF

7 Function Digital Multimeter

 

This is the one I ordered eventually, ordered the wrong ones initially.

GWUNW BY42A 500V 10A DC 4 BIT Digital Voltage Ammeter Current Tester Meter Voltmeter Dual Display Red Blue Green LED|display meter|digital meterdisplay voltage meter - AliExpress

 

How often do you do the grid charge? Will this improve the hybrid battery longevity test ? Thanks

My parts are coming in this week, will look for a shell to put the stuff in.

 

The cheapest meter at Harbor Freight is no longer an option now because they are using different parts in it therefore the max voltage it can read is 250V DC !! Do not buy the ones in the stores anymore as they don't carry the previous model Item #98025 anymore that can read up to 1000V DC.




I ordered the digital meter in the OP off eBay, it says it located in USA but just noticed after I placed order that the Ebay seller is probably lying and is shipping from China Hate these people that say they are US base when they are not. In the mean time if I probably use my Fluke meters.

 

Thank you for finding this fuse holder & fuses at Digikey!
I just received my order & the fuse holder is perfect.
Screw together ends hold 5mm x 20mm fuses. 16ga wire leads.
Here is the Digikey p/n in text form (so a search engine can find them).

Digikey p/n - Description
---------------------------------------------------------------------------------------
F1468-ND - Littlefuse Inc Inline fuse holder = 350V/10A
486-1768-ND - Schurter Inc Ceramic Fuse, 2.0A, 300VDC
486-1800-ND - Schurter Inc Ceramic Fuse, 2.5A, 300VDC
486-1773-ND - Schurter Inc Ceramic Fuse, 3.15A, 300VDC

 

Can the INSIGHT grid charger be used on the Prius hybrid battery?? It seems like if you left it charging it would eventually get the Job done?

 

You say you built a grid charger without noticing post #3 pertaining to using this build on an Insight vs Gen 2 Prius?

How important is it to buy and install a "Grid Charger" | Page 2 | PriusChat

Post #3
Build Hybrid Battery Maintenance Gear For Under $100 | PriusChat

 

I recently watched a guy on you tube that charged his hybrid battery with a 12v car battery. And it seemed to work fine as long as you keep your eye on it. So it seems to line up with what your saying. 12volts charging time get a SOC OF at least 8volts. heres the link-