Allotment Gardening Advice Help Chat

Chatting => Equipment Shed => Topic started by: step_pops on August 27, 2013, 15:32

Title: 12v propagator
Post by: step_pops on August 27, 2013, 15:32

Is there such a thing as a 12v propagator that I could run from a trickel charged car battery?

Thanks in advance

step_pops

Title: Re: 12v propagator
Post by: arugula on August 27, 2013, 16:08

That sounds like a project crying out to be made.

Title: Re: 12v propagator
Post by: grendel on August 28, 2013, 12:27

how about a 12W-15w rear light bulb, placed in a box under the container of soil (to warm the soil) 12W would draw 1A from a 12V battery, - thus a 70AH car battery would last for probably 48 hours before needing to be recharged (as its never wise to completely flatten a car battery)
Grendel

Title: Re: 12v propagator
Post by: BobE on August 28, 2013, 14:49

Quote from: grendel on August 28, 2013, 12:27

how about a 12W-15w rear light bulb, placed in a box under the container of soil (to warm the soil) 12W would draw 1A from a 12V battery, - thus a 70AH car battery would last for probably 48 hours before needing to be recharged (as its never wise to completely flatten a car battery)
Grendel

You could trickle charge the battery with a photocell panel.  Im not sure if its a good idea to have a lead acid battery indoors, fumes etc.  So might be best in a shed or greenhouse.

Title: Re: 12v propagator
Post by: Bigbadfrankie on September 30, 2013, 21:32

What about the element from a lorry wing mirror . Dont know the wattage but some are quite large