Its been at least a few weeks since a battery topic appeared. My Hobbyking Zippy compact 4200mAh LiFePo4 4s2p battery has died, and my spare has some swelling, so looking for a new LiFePo4
Can’t find anywhere shipping to UK with a 4200mAh rating (my preferred size) but saw this on Amazon for a good price
Is there anything problematic with this type of battery (except for being twice the capacity I need)?
Any other good suggestions?
I haven’t used either type of battery but I know others do successfully. The key differences are that the Amazon battery contains a BMS so it will need a different charger and may have a lower current limit. It’s a shame that RC style LiFePo4 batteries are really hard to find in the UK now.
Order a 12V 4Ahr LiFePo from Eremit in Germany. Eremit only ships to German addresses. But there are 2 international dealers listed on the website. You can check if they will ship internationally, probably not.
Get a cooperative German ham and pay them to order your cell from Eremit (https://www.eremit.de/) for delivery to their address.
Go on a SOTA holiday in Germany. Preferably near the ham in #2 above.
Meet ham, collect Eremit cell, do joint activations, have a nicel meal (meat and beer and kuchen) .
Return home with new LiFePo.
I collected mine at the Friedrichshafen rally from a very nice chap. I’m very pleased with my 12V 4Ahr version.
You can also get a Lidl Jump Starter (UMAP 12000). It has a 3Ah LiFePo4 inside, and can be charged from any USB connector.
I am alternating two of these batteries with my XieguG90 (it works fine with 3Ah). I am not using the 12V/8A otput since is very noisy. Instead I bought some EC5 bullet connectors to get raw 13.4 (or less) Volts from the “engine start” connector (connected directly to battery terminals). If your rig is not forgiving regarding supply voltage, you might need some circuitry to lower this voltage.
Thanks for the replies. 18650s seem to work out a bit more expensive than the ready assembled packs…but I am starting to think 18650s are the way to go…looks like there are some bms boards with usb-c connectors for charging.
Sorry to copy the battery died.
Amazing battery, mine is still going after 12 years got 3 activations out of it this week.
Not rubbing salt old mate.
I noticed a fellow doing Parks the other day had a small Quadcopter battery much the same size as the HK 4200. not sure if it was LiFe or LiPo.
Good luck in the search.
Regards vk5cz …
Maybe… I’d expect the shipping costs to be eye-watering if possible. When I bought a HobbyKing LiFePo pack that retailed for about £35, the shipping was another £30. i.e. shipping was nearly the same cost as the battery.
A friend imported them in the EU and I can confirm the shipping fees nearly doubled the price of the item.
I just ordered the 2Ah and 4Ah Eremit LiFePO4 from their international reseller, I’ll blame Andy for the enthusiastic review, shipping was not cheap (23€) but I pooled them with other heavy purchases that would have required significant fees… or at least this is how I rationalised the expense.