OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s

I bought 4 of these while on offer. I was originally looking at heated gilet's but they're mostly unattractive, they have to be worn tight to work. You're then restricted on what else you wear etc., etc. Not just to hold in your hand, I put these inside my coat, whatever coat I choose to wear. Keeps me toasty and warm. They do get hot, much hotter than most heated garments I've tried. I usually put in full blast for a few minutes, then set it down to one (lowest). Lasts for hours, though I can't say 15 but plently long enough for my uses. These are much more versatile for me than heated clothes. Very pleased with them. The only downside I've found is that you cannot use a high power charger. It's not that it just charges slowly anyway, it simply does not charge at all. Using a standard low power charger it charges fine, but takes a long time. Hence why I bought 4. I generally only use two at a time while the other two can stay home and be charged. However, when travelling it will mean taking a separate low power charger just for these as everything else works with intelligent fast chargers, even those that do not fast charge. These hand warmers do also seem very well made, good quality products.

Bought two of these and love them.They do get really hot, not too hot to hold but a bit too hot for prolonged pocket use in trousers.Decent size, also use to alleviate backache by placing under belt.Heat settings are easily selectable, but some kind of switch cover would've been nice as its quite easy to alter heat setting accidentally.Double-clicking heat button shows battery state, so it's easy to see if it needs a top up

The battery life does not meet up to expectations. On the first setting, the battery is estimated to last up to 15 hours on a full charge. On average mine have lasted at most, 5 hours on the first setting. When they are on though, they keep my hands very warm and I find them comfortable to hold in my pockets.

Easy to charge. Easy to use. Works well. Recommended.

Heats up fast keeps your hands warm even on the lowest setting. The chargeable battery is excellent if you need to keep warm longer just swap the battery out & off you go. Only gripe is with two batteries it takes a while to charge both. High quality and would definitely recommend to anyone.

4 heat settings. I rarely come off setting 1. I find setting 1-2 is comfortable hot. 3-4 I've used to get a blast of real heat before reducing back to lvl 1.I've not put it to the clock but 15 hours of heat at lvl 1 doesn't sound like an exaggeration.This thing is chunky. Ergonomically fits in one hand nice. Feels like it has a 360° heating plate. Not top and bottom. Cheap to charge.I've now got 3. 1 for each hand and one for a gift of heat to a family member.

functions well as a handwarmer, the powerbank core only accepts 2a charging via usbc (and refuses to charge with higher rated chargers!), and output 2a usba so no fancy fast charging availableedited to add battery life lower than advertised, in lowest setting lasted around 10 hours instead of 15

Works very well but is quite heavy.

Works well, stays warm, good price. A great gift for the hunter who uses hot hands.

Been using this everyday for a couple weeks and they work great. The lowest heat setting is hot enough. Description says it'll last 16 hours on this setting, but it's more like 8 hours per battery. I'd say these are sized better for medium to large hands. Would buy again.

Bon rapport qualité / prixA voir dans le temps

Funciona muy bien y calienta lo suficiente. Sin embargo la duración de la batería no llega a quince horas ni por asomo. A mí me ha durado justo la mitad, que de todas formas es más que suficiente. Siete u ocho horas calentando es una buena autonomía.

The heater works great , have along when hiking in the bush in winter.