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YOUR RESEARCHTrickle Chargers
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Use 1.25 amp
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Leading evidence: 'Use 1.25 amp' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect battery vs leaving it connected' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
If engine wont be going back into this roller for say 4 months is there a reason/benefit to disconnect the battery vs leaving it connected?
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Need a recommendation for a trickle charger for a roller sitting in my garage for next several months? Are there differences between models? Does the battery even need to be connected at all on a roller awaiting return to service?
Thanks
There is a difference between a trickle charger and a maintainer (like Joe just posted). If you want to be able to leave it on long term without worry, get a maintainer of some variety, lots out there. If it’s a roller and battery is disconnected, it should hold as there is no parasitic drain anyway, so lowpue’s advise is also viable.
I like my Porsche Battery maintainer, its small,plugs directly into the wall & the cord is about 12 feet long. For faster charging of any battery I like the C-tek chargers.
A trickle charger applies a constant low current all the time. A maintainer, has a small brain, that lets it monitor battery voltage, and alternate current applied to maintain peak condition of the battery. Basically, you can leave a maintainer on 24/7 for months, but a trickle can damage the battery if left long term.
https://mechanics.stackexchange.com/...rickle-charger
I like the Deltran maintainers. I use a 1.25 amp for winter storage on my 996.
I believe the difference between a trickle charger and a maintainer is the trickle charger constantly provides a low amperage charge...trickle as in water faucet barely turned on. Not necessarily the best for the battery. A maintainer has internal solid state equipment that monitors the battery charge condition and applies a charge only when needed. Some even vary the demand/supply to the battery to keep it more healthy.
Cigarette adapter only works on a vehicle where the cigarette lighter is hot all the time i.e. even when the ignition switch is off like on our 996's
Note: JTT is quicker than I am!
If engine wont be going back into this roller for say 4 months is there a reason/benefit to disconnect the battery vs leaving it connected? Connected or disconnected i will hook up a �maintainer� vs a trickle charger.
thanks for the responses.
I've got 5 Battery Tenders
4 single modes for my 911, 335i and MR2 and one for a jumper battery, which are always connected, and one one dual mode that I use as needed for my F250 that has 2 batteries, which is parked in the street.
Haven't ever had a problem w/any of them. The oldest was purchased over 30 yrs ago..
