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Item 1 of 1
Item 1 of 1
Item 1 of 1
LEGO®

LEGO® Power Functions Rechargeable Battery Box

Price64.99 CAD

Available now

LEGO® Power Functions Rechargeable Battery Box3.8540.
rating.prefix3.8rating.postfix
Limit 5

Product Details

Charge up your LEGO® Power Functions!

Item
8878
VIP Points
64
Ages
7+
Pieces
1

Features

No more disposable batteries! This rechargeable battery box has built-in Lithium polymer batteries for low weight and maximum power. Use it in your LEGO® Power Functions models and never have to use disposable batteries again!

  • NOTE: You must use the #45517 10VDC LEGO Transformer to charge this battery box
  • Motor speed can be controlled via the battery box speed control dial!
  • Output voltage is 7.4 V!

Building Instructions

LEGO® Power Functions Rechargeable Battery Box

Customer Reviews

Overall Ratingrating.prefix3.8rating.postfix
(40 Reviews)
73% would recommend this product.

Rating

Overall Experience

Play Experiencerating.prefix4.3rating.postfix
Level of Difficultyrating.prefix1.4rating.postfix
Value for Moneyrating.prefix2.8rating.postfix
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Reviews

1 of 10
  • 5 days ago
    rating.prefix1rating.postfix
    Great quality battery, doesn't include necessities
    Purchased for: Self
    I've already purchased three of the non-rechargeable battery packs (88000, and they work great!), but I wanted something that would be more convenient to recharge (So I don't have to remove it from my model each time to replace the batteries). Pros: - It did seem to come pre-charged, though I...
    Play Experiencerating.prefix5rating.postfix
    Level of Difficultyrating.prefix1rating.postfix
    Value for Moneyrating.prefix4rating.postfix
    Building Experience: Expert LEGO builder
    Was this helpful?
    15
  • 7 days ago
    rating.prefix5rating.postfix
    add other plugs on top off motor.
    I would recommend this to a friend!
    Purchased for: Self
    Can you add 8870 power functions Light V120 on top off power motor drive. I tried but the lights do not come on when I push the green button, the motor still works. Is cause the rechargerable battery box is not powerful enough? or needs a switch of some kind between the lights and the motor. Otherwise a great...
    Play Experiencerating.prefix4rating.postfix
    Level of Difficultyrating.prefix1rating.postfix
    Value for Moneyrating.prefix3rating.postfix
    Build Time: 10 mins
    Building Experience: Intermediate LEGO builder
    Was this helpful?
    55
  • 2 months ago
    rating.prefix4rating.postfix
    Good for long trains
    | 25-34
    I would recommend this to a friend!
    Purchased for: Self
    I bought my 3th rechargeable battery box for one of my Lego trains. I prefer the rechargeable one above the AAA-battery box because the power is higher which is good for a long train. Otherwise you don't have to take out the battery box of the train each time to change the AAA-batteries. You have only leave a hole where can connect the DC-adapter. The price is high but it gives a lot of power and the train can run a long...
    Play Experiencerating.prefix5rating.postfix
    Level of Difficultyrating.prefix2rating.postfix
    Value for Moneyrating.prefix4rating.postfix
    Build Time: 1 mins
    Building Experience: Advanced LEGO builder
    Was this helpful?
    45
  • 24 days ago
    rating.prefix1rating.postfix
    They don’t really work.....
    | 35-44
    Purchased for: Son
    After charging I find that they won’t turn back on, sometimes they will sometimes they won’t. I bought 2 batteries and 1 charger at the same time and after 2 months they are pretty much garbage.... too bad my son loves his Lego trains but they are expensive to keep...
    Play Experiencerating.prefix4rating.postfix
    Value for Moneyrating.prefix2rating.postfix
    Building Experience: Advanced LEGO builder
    Was this helpful?
    15
1 of 10
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