Jump starter/ pack/charger
- Thread starter GR8ADV
- Start date
waltermitty
Member
Does dead mean 2vdc, 5vdc, 11vdc ? The Fuso battery requirements call for 950cca which is pretty generous rating.
The past few years the smaller, handheld power packs utilize super capacitors. This design uses residual voltage from the battery to charge and amplify the capacitor ...similar to portable heart defibrillator...and releasing the energy in hopes it will have sufficient boost to start the engine. This design is smaller and lighter than the previous booster packs using legacy motorcycle lead acid/AGM battery (heavier and larger)
The larger the capacitor rating, the better your chances of being able to start the vehicle. But larger capacitors also mean a larger booster footprint which isn't always consumer friendly. As an aside, the capacitor isn't designed for long, drawn out cranking.
blah blah....to answer your question, a separate car battery would be good but the drawback would be 50lbs or more. a large motorcycle size lithium battery could be considered and weigh less than 10#. A good companion for the lithium cell would be one of those ubiquitous handheld booster/jump packs with the largest capacitor you can handle. If the handheld booster pack isn't able to start the Fuso, it can be 'recharged' using the lithium cell. Additionally, if your overland equipment already includes a large Jackery type pack, that could be used as a 12v power source for your jump start but I've not tried this first hand yet.
I'm actually bench testing (not yet field testing) super capacitors bundled to the size of a 6-pack of beer since I had the same thoughts and questions you posted
The past few years the smaller, handheld power packs utilize super capacitors. This design uses residual voltage from the battery to charge and amplify the capacitor ...similar to portable heart defibrillator...and releasing the energy in hopes it will have sufficient boost to start the engine. This design is smaller and lighter than the previous booster packs using legacy motorcycle lead acid/AGM battery (heavier and larger)
The larger the capacitor rating, the better your chances of being able to start the vehicle. But larger capacitors also mean a larger booster footprint which isn't always consumer friendly. As an aside, the capacitor isn't designed for long, drawn out cranking.
blah blah....to answer your question, a separate car battery would be good but the drawback would be 50lbs or more. a large motorcycle size lithium battery could be considered and weigh less than 10#. A good companion for the lithium cell would be one of those ubiquitous handheld booster/jump packs with the largest capacitor you can handle. If the handheld booster pack isn't able to start the Fuso, it can be 'recharged' using the lithium cell. Additionally, if your overland equipment already includes a large Jackery type pack, that could be used as a 12v power source for your jump start but I've not tried this first hand yet.
I'm actually bench testing (not yet field testing) super capacitors bundled to the size of a 6-pack of beer since I had the same thoughts and questions you posted
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GR8ADV
Explorer
That was the idea before dual lithiums. Not best for that.
SkiFreak
Crazy Person
I agree, but we are not looking for an alternative for lead acid start batteries here, just a temporary solution in the event of having flat start batteries.
If you continue to have issues with the start batteries, they probably need changing.
lvivier
New member
I've used a NOCO Boost XL to jump start my Fuso (2018 FG4x4) when it had dead batteries after sitting for several months with an OBD reader plugged in (!). It had enough juice for one jump. The batteries were dead enough that they wouldn't hold a charge and they were replaced.
My 99 12 volts FG came with two start batteries. I used a marine battery switch to separate them and provide off/one/other/both options. I run on one battery switching from 1 to 2 periodically. But I always have the second battery for jumping purposes. When temps get below zero F I've used both batteries for starting just in case the single battery was inadequate.