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BFL13's avatar
BFL13
Explorer II
Oct 24, 2021

Charging Timer?

Would this gizmo be any use? Instructions at bottom of the link--none come with package as they warn.

Not sure I am reading it right--need more eyes on to confirm. Thanks.

Seems to answer the problem of how to put a timer on your charger if you don't put a "regular" timer on the 120v. Not clear if you are left with no charging at all. You could have the converter at 13.6 and use another charger at 14.6 with this timer? (when 14.6 time is up the 13.6 would be there to carry on in that case)

https://www.ebay.com/itm/224065068787?_trkparms=ispr%3D1&hash=item342b519ef3:g:FdoAAOSwxWFe~PRF&amdata=enc%3AAQAGAAAC4PYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSvtkx670Z0mbyfWqmxLFLYTYlAnBNUfa%252BjFmbJC7xgCdUb3cTSQ8FZ0VFOJqqmH6r0%252BjnuzCpQsfZSx%252F4Zqka5acpGFWuhiigaWdRj9iOnKoPaw2edL6gM1%252BoDee8ePfU1bSCpe6AKs9Pnpdh7DYZx4H%252F4LHmJghrDdho8fhKqduw%252BTKt0MuWsKTSWjmP3N8Z7d1U7beY1hECaZb6HIFjL56hqb8Mp%252FRMqhRGPXb1NsGL6g6%252BAAQNJ5BB7xBqhpYfKATExmvsbp8b9LWk%252Fz28vj1eFDHhjaiDw7E3nQx7P%252BbKuGy%252FIkT0NnZkKUVQXM5Q679FYiBCuhgdQ%252BC7fMOYpXEcZ5FA3j9DBNHOloL2egjI3kBmGcZZT5xtCZz3EbHbsRuZAuJ5P4%252Fp9pFV3i2Fcd3xQ2lY%252BkwBZD%252BIzdcDx39NNy7yldskkOYT61%252BPTXQ8ipl%252Ftb4f8ISJamI0BsxamdCbhxb%252BCM2SwNFMorpv%252BfLTm%252FpR7Y1OeWmrrZDv5l7mBYjKKorlmx7l%252BeowYmS3ov1IFKHiAemnaJe8vVuYKGOdpWNLFeOWIxddiVz0VK6M34lTsu8BNxxT4YCdeIebx46hAi%252BXLSsgE1YMVRImqulW%252BAh0R6EJoRAKfjzVPeD%252B6ndfSssD%252FcLCVzIEWJpRXMdKacLPyTXtBOWQnQlD4xKgoJumLY8UKMrVeTcBRaA50Mqhtj4r5xZz3v4tBhePUQpCIf%252FI1qOeo%252FF166e%252Fyf9G2b5RN%252F3yedRfIOPU4xN3LTI9HxvTVi3F7MxfbkDWfwJvJkIF%252Fe75h5Io%252FQEJPic3SEYds3sgeEnH2LujE3XC87rcZMEn7b1Sl6CVE32w%252Bra4C9hAI7YMj8qnqPSu21eieKeGJSMDwjOHyZcLIQfMgNoabUxu%252BuTWSHIThy%252BPkUDZjpHjELO0ovjNHkThNHk%253D%7Cclp%3A2334524%7Ctkp%3ABFBMisrzs5Zf

19 Replies

  • Look on Amazon for square face 200 - Amp DC relay.The Intermatic is a snap action switch. The relay should last forever x 12.
  • Wind up timer powering a constant duty relay. Chinese electronic timers are
    J U N K
    even the most expensive Chinese models blow up

    I have never had a failure with an Intermatic.
  • Been many threads on this. A typical three- stage converter does not meet all needs for absorption timing. Eg the CW four hours might be too long or too short.

    If you use a single stage charger set at 14.6, you want to control the time that is left on. If manual control is not convenient, a timer can be used to pick a suitable absorption time.

    Mex likes the household type of lights timer on the 120v side. Some fancy chargers will let you set an absorption voltage and an absorption time.
    I thought this gizmo is an attempt to insert that fancy feature into the DC side of an ordinary charger.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Why use a timer
    There are 3 types of Converter/chargers that I know off of hand
    "Constant voltage" (one stage)
    Two voltage (Times or sensed the parallex 7300T is a timed bulk then it goes to float
    And 3 or 3+ stage (the best) the Progressive Dynamics 9200 and IOTA IQ4 models top this list.

    Pick any other than the first.
  • BFL13,

    If you can't return it would you believe that quality control is high--or low? It doesn't matter if it is a 50 cent item--if you can't return it--I am NOT interested.

    I could not find the owner's manual.
  • Who would really return a $10 item if it didn't work? Goodness.

    Perhaps this particular gizmo is too lightweight for RV work, but it is a good idea for some scenarios?
  • pianotuna wrote:
    Seller does not accept returns.
    Even if they do it can be a hassle. I stay away from ebay.
  • I would be worried switching 30 amps DC with that small relay. Maybe control a 15 amp charger.
    Otherwise I would expect more reliability switching the AC power.

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