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Forum Index : Electronics : Winter Maintenance Charger

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Pete Locke
Senior Member

Joined: 26/06/2013
Location: New Zealand
Posts: 184
Posted: 12:45am 15 Jun 2026
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Winter is setting in here in New Zealand, so the ride on mower will be parked up until spring kicks the grass back into action. This normally requires remembering to throw the battery charger on for a bit, and more importantly, remembering to take it off again. There are maintenance 'Automatic' chargers available at prices ranging from not bad to 'I just want a charger, not the whole manufacturing plant' 😳. But what's the fun in buying one when there is a shed full of crap the bits can be extracted from. So I borrowed most of the design of a Ducati switching regulator, and improved the control side to something a little less privative, and lot more reliable.



Works a treat.
Cheers
Pete' N.Z
Edited 2026-06-15 10:46 by Pete Locke
 
KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 2173
Posted: 02:10am 15 Jun 2026
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This is way better then my chalk board reminder to cycle the various batteries for all our power tools every month or so
NANO:Inverter V 8.2ks - Linux AvrDude GUI script V4.1
 
Revlac

Guru

Joined: 31/12/2016
Location: Australia
Posts: 1270
Posted: 07:37am 16 Jun 2026
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  Quote  But what's the fun in buying one when there is a shed full of crap the bits can be extracted from.
  Exactly, the only time to throw anything out (scrap) is when it's good for nothing else.
Cheers Aaron
Off The Grid
 
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