4000mAh 35A 6S1P Li-ion Battery Pack
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Technical characteristics
Perfect for Long Range flights or Freeride trips, this Li-Ion pack offers a very interesting weight / range ratio !
Warning: these packs are not intended for nervous flights with large calls for gas. The discharge rate is about 12 times lower than a 100C lipo for example!
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Li-Po (Lithium Polymer) batteries and more generally all batteries, must be used with care, particularly when charging and discharging and when they are generally used on a scale model. Battery chargers must imperatively remain under the supervision of the user during their use in order to be able to react quickly in the event of an incident. They must be placed in an open area, without risk of fire. Use of a safety bag for battery charging and storage is imperative. Never charge a battery showing signs of shocks, one or more swollen cells, a damaged cable.. NEVER CHARGE A BATTERY WITHOUT SUPERVISION, AT NIGHT OR IN YOUR ABSENCE |
BULLET POINTS
- Longer flight time
- Reduced weight
- Reduced size
SPECIFICATIONS
- 4000mAh capacity
- Type: 6S1P, Samsung INR21700
- Weight: 433.3gr
- Dimensions: 70x64x43mm
- Discharge: 35A
- Burst : 45A
- Power connector: XT60
- Balance connector: JST-PH2.0 (adapter to JST-XH supplied)
- 0.5C for charging (2Amp) is the best
INCLUDED
- 1x 4000mAh 35A 6S1P Li-ion Battery Pack
Customer reviews
Pas reçu
Bonne autonomie, ne pas forcément se fier au voltage de l'OSD
all good
Arrivée à 3,4v par cellule mais ça marche
Bon produit
Does not match advertised specification due to the way the cells are connected together. Avoid if your continuous current draw is above 10A. Read below for additional details: From the beginning I was under the impression that the packs were getting quite hot (with temperatures in the 50°C range) after each session despite keeping the current draw in the 10A-20A range with rare bursts above it every now and then and landing with the voltage in the 3.0V-3.2V per cell. While the packs are indeed made with Samsung INR21700 cells which are rated for a continuous discharge current of 35A, DFR connected the cells in series using 8mm (wide) x 0.2mm (thick) nickel strips. These strips are rated for an optimal current of up to 7A and an acceptable current of up to 10A. If you push them over it, the strips will start to heat up and in extreme cases like it happened to me, they will get so hot that they'll burn through the insulation and shrink wrap. I contacted DFR customer service about this issue however all they did was to provide generic non-responses and avoided answering all my questions about build quality and expected behavior. The whole exchange felt a bit disingenuous. I took one of the packs apart and rebuilt it with 14 AWG wire as conductor between the cells. This solved the temperature issue.
Balancer connection wet off on first flight from all batteries, big chance of bricking quad in air. They also all burned down on second flight.
Super batterie, j'ai volé plus de 14 min sur un vol long range 10 km al.re. avec mon Evoque F5D vista plus la gopro (1.1kg en tout), je suis descendu à 18.5 V et aucun problème
tres good
Parfait pour mon 7 pouces
Parfait pour mon 6" gravity, sans pousser a fond j'ai fais en test 9,5km jusqu'à 3v chargé a 4,10v poid total env 1kg avec Gopro 8
tres bien
15min de vol avec mon 5" diatone roma f5 v2 et gopro 11. Le cable de la lipo qui va a la prise xt60 est moins gros que d'abittude mais ne dérrange en rien son fonctionnement
Bonne finition
Conforme
15 minutes à 3.2 ... Je peux sûrement pousser à 17 voir 20, fait parfaitement le boulot pour le cruizing long range, en l'occurrence voler au dessus de la mer pour ce qui me concerne.
Batterie recu avec tensions cellules très faible 3.2 à 3.3v Mon chargeur a envoyé plus de 3900mah Une fois déchargé sous 5a jusqu'à 3.7v puis 0.6a jusqu'à 3.6v : une cellule n'était plus reconnu. Dfr ne voulant pas la remplacer et me demande de la renvoyer à mes frais pour m'indiquer que tout va bien : quelle mauvaise foi!!!
Très satisfait suite à mon premier vol avec mon 5" freestyle : 4,10 V à 3,4 V en 9 minutes avec un masse totale de 950 g. Pas encore essayé de descendre plus bas en tension.
De très bonne qualité
