Advice needed on new Dewalt drill - DCD778 or DCD796 with smaller batteries

Discussion in 'Tool Talk' started by Madmax83, Oct 11, 2021.

  1. sparko69

    sparko69 Screwfix Select

    If you are a casual diy'er using a combi drill then i would think you just need 1 dewalt 5 ah battery and that will last you about 6 months. You would only need 2 batteries if you are using bigger tools for long periods of time so you can charge 1 while using the other.
  2. Hans_25

    Hans_25 Screwfix Select

    I'm DIY and bought the top notch Makita cordless drill/driver incl 2x5Ah batteries, cost £300. Wouldn't do it differently:
    - this tool is used the most, by far.
    - having 2x5Ah batteries (plus 1x3Ah) is great when doing a day or weekend of DIY as I have multiple 18V tools and saves swapping batteries. Also means I can carry on working while one battery is charging.
    buffoon1 likes this.
  3. Tilt

    Tilt Screwfix Select

    I disagree with the 'one battery' idea.

    I think having a spare charged up, whether DIY or not, is by far a better option.

    Doesn't matter how big the battery is, if it runs out mid job and you don't have a spare, well, prepare to wait a while.

    Each to their own though.
  4. sparko69

    sparko69 Screwfix Select

    Modern 5 ah batteries will last a diy'er all day and even if the battery runs out it can be recharged in 30 minutes. For Diy use a single dewalt 5ah battery is more than adequate
  5. Tilt

    Tilt Screwfix Select

    And so are two smaller batteries. Adequate, that is.

    I'd prefer to have a spare, as I said. I think it makes more sense.

    And each to their own, as I said..........
    Abbadon2001 likes this.
  6. BiancoTheGiraffe

    BiancoTheGiraffe Screwfix Select

    I appreciate this is an old thread, but here's my tuppence worth...

    I'd prefer two smaller batts rather than one big one, better to have to keep swapping and charging than have one which dies at an inconvenient moment, especially for DIY purposes when you have a socket and charger to hand 99.9% of the time.

    I picked up another (Three total now!) DeWalt combi from our hosts for £150 with two 4.0aH batts a month or so back, absolute bargain
  7. Madmax83

    Madmax83 Active Member

    Agree with 2 batteries.

    I was using this drill a few weeks ago and the 5.0aH battery died on me for the first time. The battery does indeed last forever and the only time I charged it was when I first bought it. I had used it a lot and it eventually died whilst in use.

    So whilst a 5.0ah will be more than enough for a casual DIYer, unless you make sure you charge it after using it or before next use, having a spare battery means you don't need to bother.
  8. stevie22

    stevie22 Screwfix Select

    I agree with the 2 batteries approach. I have a pair of 1.5s and a pair of 4s for my Ryobi kit. Both pairs bought on B&Q offer where 2 batteries plus charger plus bag plus combi were cheaper than the batteries. I tend to use the 1.5s a lot as they are of course much lighter.
  9. malkie129

    malkie129 Screwfix Select

    I have a Makita 10.8/12V 1/4 hex drive drill/driver which has 2 x 2 Ah batteries. I find this so light & useful when used with Bosch 1/4 hex drive drill bits. I later bought a bare 12v Makita impact driver. This set up meets most of my needs. I also have a Hitachi combi drill with 2x !8v/3 Ah batteries, but I rarely have to resort to that.
  10. buffoon1

    buffoon1 Member

    Strongly AGREE with Tilt on that. It has taken me too long to learn this lesson. Resting on battery bottom may cost you dearly, as it has me. So many expensive bent bits; kicking myself now as I should have known better. I'm asking people to slap me if they see me still do it (it is a terrible ingrained habit).
  11. Truckcab79

    Truckcab79 Screwfix Select

    Also depends very much on how hard you’re working it. I’ve got a Makita reciprocating saw that has a supposed working time of about 40 minutes. Which is true if you’re cutting matches with it. Work it hard through a four inch fence post and you’re lucky to get a handful of cuts out of it before a 4a battery is giving up the ghost.

    More batteries the better. Think I have 12 currently so theres a constant cycle of those in use and those on charge, but most stuff I have is Makita 18v. Very rarely use anything that isn’t battery powered any more.
    Hans_25 likes this.
  12. toolz

    toolz Member

    Still not got around to replacing my drill yet. Will go for 4 or 5.0Ah drill driver set. Some deals at the moment so I might be able to get something decent.

    So Milwaukee £220, Makita £240, Erbauer for £200 and DeWalt for £250. Can't decide. Someone decide for me? :D
  13. FraserD

    FraserD Active Member

    I'm looking for a new combi I have an old dw977 which I've had 20 plus years.. But now feels very heavy.

    I have a dewalt sds with two 5 amp batteries.

    I'm torn between the 796 and the more powerful 996.. But seeing as I already have the sds is the 996 over doing it, I'm thinking it is.

  14. stevie22

    stevie22 Screwfix Select

    I use my 1.5A batteries more than the 4s I also have because they are so much lighter. Absolutely fine unless doing really power hungry work. Ryobi and DIY albeit fairly extreme at times.
  15. toolz

    toolz Member

    Yeah that doesn't help. Whole thread raves on about 4/5.Ah batteries and now someone says 1.5Ah is enough. That might even be what I have right now, I have to check. I suppose I might save myself some money if I don't got for 4/5.
  16. FlyByNight

    FlyByNight Screwfix Select

    A drill you will use for high torque and or long operations does better with a larger 4 or 5 Ah battery. Working up a ladder with it ashoulder or head height - a lot easier with a 1.5 Ah. Mine have 4 Ah fitted normally, but the smaller 1.3s are always available when needed.
  17. penkenna

    penkenna Active Member

    I started out with 1 battery, now have four as the tool collection has grown. 3Ah batteries charge a lot quicker than 5/6 amp hour.
  18. stevie22

    stevie22 Screwfix Select

    The massive advantage of Li batteries is that you can essentially shove them on and off charge at any stage without affecting them. The charging rate will be the same so a small battery will be full before a big one but the big one will have received the same amount of energy.

    Thus as I said before unless you really need a big capacity battery for a specific job you can get by fine with lighter ones: you're going up a ladder? Stick a new battery in and the old one on charge: if you're doing so much that one battery won't last, then you should probably have a scaffold up.

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