|Model||Battery Tender Plus|
|Item Weight||20 pounds|
|Product Dimensions||11 x 4 x 11 inches|
|Item model number||021-0156|
|Manufacturer Part Number||210156|
|OEM Part Number||021-0156|
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Battery Tender 021-0156 Battery Tender Plus 12V Battery Charger True Gel Cell Model
|Price:||$49.97 & FREE Shipping. Details|
|You Save:||$9.98 (17%)|
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- Temperature-compensated to ensure optimum charge voltage according to ambient temperature
- Unique Gel Cell battery adjusted software allows for a slightly lower charge voltage and higher store voltage to protect sensitive true Gel Cell batteries
- Lower voltage for specific use on GEL batteries only
- Complete 4-step charging program (initialization, bulk charge, absorption mode and float mode) allows for optimal constant battery levels without overcharging
- Automatically switches to float/maintenance voltage mode after fully charging the battery
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|The Battery Tender Plus 12-volt/1.25-amp Battery Charger True Gel Cell model is the best way to deal with the challenge of keeping 12-volt vehicle batteries optimally powered when not in use, especially for users who own true Gel Cell batteries. It is not only able to charge any 12-volt lead-acid battery, its specially adjusted internal software allows for a slightly lowered voltage level that protects sensitive Gel Cell batteries from the dangers of overcharging. It is also designed to be easy to use in difficult spaces, to utilize a 4-step charging program and safely function in a fully automatic mode. Taken together this makes the special Gel Cell version of the Battery Tender Plus 12-volt/1.25-amp Battery Charger an excellent means of ensuring that all your batteries are fully charged and ready to go when you are. |
The Gel Cell battery is similar to the AGM (Absorbed Glass Mat) battery in that its contents are sealed, but different because technically the AGM battery is still considered to be a wet cell. The guts of a Gel Cell contain a silica additive that causes it to set up or stiffen, first like Jell-O, then after subsequent discharge/charge cycles more like peanut brittle. Micro-cracks form in this gelled electrolyte that provide paths for the oxygen recombination reactions between the positive and negative plates. The recharge voltages on this type of cell are lower than the other styles of lead acid battery making it probably the most sensitive cell in terms of adverse reactions to over-voltage charging, and thus needing special care.
Safe, 4-step Battery Charging for True Gel-Cell Batteries
10-Year Limited Warranty
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Top Customer Reviews
So .. will it work? Yes. Is it recommended by the manufacturer and optimized for other battery types? No.
The above is from my conversation with a representative from Deltran. Please do not flame me if you don't agree with what the manufacturer told me. I suggest you call them if there are disagreements. I just wanted to post this to provide some clarification since I am in the market for the Battery Tender Plus. Deltran's recommendation was to go with model 02-0128 unless I have the appropriate BMW motorcycle.
"There are many great chargers that work well with most batteries on the market that do not fully charge the ODYSSEY battery so if your charger floats at less than 13.5V then it will sulfate the battery and it will fail premature due to consistent undercharging and maintaining the battery in an undercharged condition. Most Battery Tenders float at less than 13.5V"
So, don't plan on using a BT+ on an Odyssey battery. Now I understand why the engine wasn't cranking over as I thought it should. Time to find a better charger. I wish BT would mention this in their product descriptions/website/etc to save the consumer the hassle. I did find a recommended battery chrager list on Odyssey's website. To be fair, my other BT's have worked great on my lead acid batteries.
There seems to be some confusion as to what batteries this will charge. It is optimized for gel cells, which require a lower charging voltage than AGM or flooded. However, it is compatible with the latter 2 types. If you do not have true gel cell batteries, this is not the charger you want, but if you have a mix of 12V gel cell and 12V lead acid batteries, it will handle all of them. 021-0123 and 021-0128 are optimized for AGM batteries, compatible with flooded (STD), and not reccomended for gel cells. 021-0069 is optimized for flooded (STD) batteries, compatible with AGM batteries, and and not reccomended for gel cells. The 012-0156 does everything.
The only thing this charger won't do that I need is to charge 6V batteries, but at the price, I can't expect them to include that capability, so I'll buy their 6v model also.
Most Recent Customer Reviews
Perfect to keep battery topped of in the winter. Will hook up my Lawn Tractor a week or two before the first mowPublished 5 days ago by Raymond Lyons
Works great! I used it to connect in the batter in the trunk of my Pontiac G8 while it was sitting for weeks at a time. I had no issues with it and it charged as expected. Read morePublished 11 days ago by Sean T. Martin