Our cars have AC motors and AC "alternators". The car runs off AC not DC. Just you can't store AC in a battery! So that's how you can get a constant charge at any speed ( rpm ) because speed does not equal volts.

To "trickle charge" you can buy off the shelf high Voltage DC, low current DC chargers. Since these put out milliamps, not amps, they will not heat up the battery, and you can generally set 'em and forget 'em. They are not practical for daily 'PHEV' use Billy because they are very low power. High power chargers will cost some bucks. 4-digit bucks.

It is hazadous, yes, but only a little more so than your household 120 VAC.
How often do you get worried about plugging in a lamp? Cell Phone charger?
Your home Air Conditioner uses 240v, as well as an Electric Range, and Electric Clothes Dryer. Plus, "we" are "experts" in this field so you need not worry about us. I would not let childern "play" with it.... no....


This is an option for the technically inclined, the hybrid hobbiest, or someone who has a battery they need or want to replace soon. One option would be to rotate two batteries every 4 to 6 months, like rotating tires. Then, you would keep both in good shape, and both would only get half the miles. You'd have 300,000 miles worth of battery! I don't think it would take you very long to do it, either. The cables are quick-disconnect, there is the fuse you pull first to make it safe ( the orange circle on the pack ), and you only need a method to lift 200 pounds without hurting your back! Something like an engine lift ( $200? ) works very well. The battery has built-in lifting straps.

Following a step-by-step process, it is safe and easy to disassemble the battery if you want just the cells. I checked, and I can ground ship these cells via UPS or FedEX since they contain no liquid acid. They are not Haz-Mat. If you want some and they are less than (70 lbs?), I can just ship them. If you want the whole HV battery in one piece, ready to drop-in, then I would drive it to you if you are along my business route. ( I provide personal customer service for a major corporation. ) These would be great high power cells, cells you generally cannot buy online or anywhere else. They would drive circles around anything else on the market for projects, camping, R/C cars, or yes, a plug-in hybrid booster pack... if you know what you are doing. Each cell can handle 100 amps. And they are "vibration-proof" which makes them very durable, indeed, for rough applications.

I'm thinking $4 per cell would be reasonable. There's 250 cells in each car.
Each cell is 1.3v and 6Ah and suitable for 100amps Max.